Rebuttal- 3g

Just as time is, credibility is relative. Stephen Hawking is widely known across the globe and recognized as one of the most brilliant minds of our time. He is ranked among the greats of astrophysics next to Einstein and Newton, and he has been formally recognized for his great accomplishments. These accomplishments though, are only as credible as we assume them to be. As of now, it is impossible to explore and examine black holes close enough to prove Hawking and his theories to be correct or not. Therefore, because his theories lie within the confines of physics, his word is taken as fact because he is so highly regarded. At the end of the day, Hawking is merely a human, and humans will always make mistakes.

It is no lie that Hawking is absolutely brilliant and deserves the utmost respect for his incredible dedication to the study of astrophysics and cosmology. He has been awarded with several medals including the Presidential Medal of Freedom, the Albert Einstein metal, the Albert Einstein award and so many more. Even with all these, well deserved, awards, it is very likely that Hawking was not correct in all of his theories on the basis that he is human. Hawking himself has shown signs of doubt about his own theories.

One example involves his multiverse hypothesis and fine tuning. Fine tuning, as BioLogos describes it in What do Fine-tuning and the multiverse say about God, “refers to the surprising precision of nature’s physical constants and the early conditions of the universe.” Certain values in our universe are so precise that if they were changed even slightly, life would never have been possible. A few of these include gravity, the formation of carbon, and the stability of DNA. For example, Philip Goff in Did the dying Stephen Hawking really mean to strengthen the case for God, explains how gravity could have affected life as we know it: “if gravity had been slightly stronger, stars would have lived for thousands rather than billions of years, not leaving enough time for biological evolution to take place.” Luckily, all of these tedious details came together to allow life in the milky way. The problem with this arises within Hawking’s multiverse theory.

The multiverse theory basically describes that if there are an infinite number of universes, there is a very high chance that the conditions for life exist within another universe, if not several. With such a huge number of universes there is also a very good chance that some of these universes infringe upon the fine-tuned laws of the universe. Goff again explains, “Stephen Hawking defended a naturalistic explanation of fine-tuning in terms of the multiverse hypothesis. According to the multiverse hypothesis, the universe we live in is just one of an enormous, perhaps infinite, number of universes. If there are enough universes, then it becomes not so improbable that at least one will chance upon the right laws for life.” With at least some universes defying such precise laws, the multiverse theory conflicts with that of fine-tuning.

Hawking’s own multiverse theory has changed over time. The older version had large varieties among to universes, but, the laws of fine-tuning have forced that theory to change. In his latest paper on the multiverse theory, Hawking himself doubts the multiverse theory’s ability to explain fine-tuning. Other physicists also have these concerns and have begun looking to quantum physics to explain what the multiverse theory could not. It is known that Stephen Hawking is a very adamant atheist, and the inability if his theory to explain fine-tuning leaves only quantum physics to explain, allowing more room to justify a Godly being, and possibly nullifying what Hawking believes in most strongly.

Another topic that is widely controversial is that of alien life. Hawking was a strong believer in alien life and conducted a one hundred million dollar hunt for aliens. When examined mathematically, there should be about ten thousand planets with alien life that we could communicate with. This does not necessarily mesh well with reality, though. As Sarah Kaplan points out in Scientists believe there’s other life in the universe. Why haven’t we found it yet? “If the universe is so full of the ingredients for alien life, why haven’t we found it yet? Or, more pertinently, considering how young humans are (100,000 years) compared to the age of the universe (13.8 billion years), why haven’t the aliens found us?” With the given age of humanity compared to the rest of the universe, if there is alien life there is a very good chance that it developed way before we did. If that is the case, their advanced technology would have the capability to not only find but communicate with us. Not only have we never made contact with, or received contact from any kind of alien life, but the one hundred million dollar search has been unsuccessful as of yet. It is not a stretch to claim that Hawking could be wrong in his theory about alien life. If Hawking could be wrong about this, and even doubts his own theory’s ability to explain fine tuning, there is always the possibility that he could be wrong in any of his theories.

Topics like black holes, that are much more complicated both mathematically and conceptually, challenge the mind even the of the most virtuoso people. The likelihood that Hawking was in fact wrong about his theory of Hawking radiation is strong. Not just because black holes are so hard to understand, but also because he has made changes to his previous theories and beliefs several times. There have been numerous times that Hawking has changed his mind and made contradictory statements about his theories. One time he even stated that black holes do not exist at all. As it is a common part of the thought process to change one’s mind, this is a drastically different stance than what he had theorized before. Stephen Hawking was an incredible man with a brilliant mind, that being said, even he made mistakes. If he happens to be wrong about his theories, that could change everything that we know about black holes and the universe as it is today.

 

BioLogos. “What Do ‘Fine-Tuning’ and the ‘Multiverse’ Say about God?” BioLogos, biologos.org/common-questions/gods-relationship-to-creation/fine-tuning.

Goff, Philip. “Did the Dying Stephen Hawking Really Mean to Strengthen the Case for God? | Philip Goff.” The Guardian, Guardian News and Media, 7 May 2018, http://www.theguardian.com/commentisfree/2018/may/07/stephen-hawking-god-multiverse-cosmology.

 

Kaplan, Sarah. “Scientists Believe There’s Other Life in the Universe. Why Haven’t We Found It Yet?” The Washington Post, WP Company, 21 July 2015, http://www.washingtonpost.com/news/morning-mix/wp/2015/07/21/scientists-believe-theres-other-life-in-the-universe-why-havent-we-found-it-yet/?noredirect=on&utm_term=.187bb5fc57ea.

“Stephen Hawking.” Wikipedia, Wikimedia Foundation, 24 Oct. 2018, en.wikipedia.org/wiki/Stephen_Hawking.

 

Robust Verbs- 3g

There is a huge problem in Vancouver with heroin addicts committing crimes to support their habits. The “free heroin for addicts” program is doing everything they can to stop the addicts. The problem is that there is a large crime rate due to the addicts. It is obvious that addicts have a hard time getting through their day to day lives. Daily activities such as jobs, interactions, and relationships are hard to maintain because of the fact that they are using. By heroin users being addicted, they will do whatever they have to do to get their hands on the drug. The types of crimes committed are those of breaking and entering as well as stealing. There are no limits to where they will go to retrieve this drug so that they can feed their addiction. The problem with this program is that it won’t help to ween these addicts off using heroin. It is only trying to save the city from rising crime rates that they’re up to. By providing the drug, these addicts will be off the streets, which in turn will prevent them from committing minor street crimes. This will also keep the heroin users out of the hospital. It is pointless that the hospitals have to deal with people that want to use bad drugs or unsanitary needles and find themselves being unable to afford hospital bills and hard to cope without the drug. This program gives people free heroin in the cleanest way possible. This will in turn fix the city  but not the addiction that these people face.

 

  1. “There is a huge problem in Vancouver with heroin addicts committing crimes to support their habits. The “free heroin for addicts” program is doing everything they can to stop the addicts. The problem is that there is a large crime rate due to the addicts.”

-The problem is heroin addicts committing crimes in Vancouver

-Save the program part for later

Heroin addicts in Vancouver produce a large crime rate in order to support their habits.

2. “It is obvious that addicts have a hard time getting through their day to day lives. Daily activities such as jobs, interactions, and relationships are hard to maintain because of the fact that they are using. By heroin users being addicted, they will do whatever they have to do to get their hands on the drug.”

-Addicts have a hard time getting the drug.

-The drug effects their whole life.

-Will do whatever it takes to get heroin.

An addiction to heroin makes every part of life difficult, especially obtaining and keeping jobs. Without a steady income, heroin addicts have trouble funding their addiction, and instead turn to crime to obtain the drug.

3. “The types of crimes committed are those of breaking and entering as well as stealing. There are no limits to where they will go to retrieve this drug so that they can feed their addiction. The problem with this program is that it won’t help to ween these addicts off using heroin.”

-Addicts will commit any crime, like breaking and entering.

-Now mentions the program.

-Program does not try to ween them off heroin.

Heroin addicts will commit any type of crime to get their hands on drugs, some of the most common kinds are breaking and entering or stealing. The “Free Heroin for Addicts” program is making an effort to stop these crimes, but not by weening the addicts off of heroin.

4. “It is only trying to save the city from rising crime rates that they’re up to. By providing the drug, these addicts will be off the streets, which in turn will prevent them from committing minor street crimes. This will also keep the heroin users out of the hospital.”

-Gives the addicts drugs to they stay off the streets committing crimes.

-The don’t clog the hospitals or jails.

This program offers free heroin to addicts to keep them from committing misdemeanors, thus keeping more addicts from clogging the jails, and the program also help to keeps these addicts out of the hospital.

5.” It is pointless that the hospitals have to deal with people that want to use bad drugs or unsanitary needles and find themselves being unable to afford hospital bills and hard to cope without the drug. This program gives people free heroin in the cleanest way possible. This will in turn fix the city  but not the addiction that these people face.”

-Give clean needles.

-Saves them from debt.

-Will not fix the real problem.

Many addicts find themselves in hospitals from unsanitary needles or drugs, by giving them clean needles and free drugs, this saves many the hassle and large hospitals bills. Though this will help Vancouver, this program does not solve the real problem which is the addiction that these people face everyday.

 

New paragraph:

Heroin addicts in Vancouver produce a large crime rate in order to support their habits. An addiction to heroin makes every part of life difficult, especially obtaining and keeping jobs. Without a steady income, heroin addicts have trouble funding their addiction, and instead turn to crime to obtain the drug. Heroin addicts will commit any type of crime to get their hands on drugs, some of the most common kinds are breaking and entering or stealing. The “Free Heroin for Addicts” program is making an effort to stop these crimes, but not by weening the addicts off of heroin. This program offers free heroin to addicts to keep them from committing misdemeanors, thus keeping more addicts from clogging the jails, and the program also help to keeps these addicts out of the hospital. Many addicts find themselves in hospitals from unsanitary needles or drugs, by giving them clean needles and free drugs, this saves many the hassle and large hospitals bills. Though this will help Vancouver, this program does not solve the real problem which is the addiction that these people face everyday.

Causal-3g

Stephen Hawking has long been praised as one of the most intelligent minds of our time. He has made incredible strides in the field of astrophysics and is arguably the most innovative influencers in said field. He has theorized many properties of black holes that we take to be truth today. Many more theories have stemmed from these, furthering our understanding of black holes and the way in which they function, or so we think. Consider though, if Stephen Hawking was not in fact correct in his theories. If these theories were incorrect, not only would they lead us to the wrong conclusions when studying black holes, but it also limits our creativity when viewing black holes conceptually.

One of Hawking’s most well-known theories is Hawking radiation. This theory is basically an answer to the question: If black holes absorb particles, what do they emit? Joel Hruska better explains this theory in Stephen Hawking may have finally solved the black hole ‘information’ problem as: “black holes do emit particles in the form of so-called Hawking radiation. That means that over time- an absolutely fantastic amount of time- black holes evaporate. But if a black hole can evaporate, what happens to the information about the material it once absorbed?” The problem with this theory is that seemingly whatever happens to the information stored in black holes, contradicts quantum mechanics.

If the particles do in fact just disappear with the black hole, that defies the principals of quantum mechanics, but if they do not ever escape the hole, that also would not be quantumly possible. From this complication, stems more theories. This next theory, also masterminded by Hawking, gives an answer to this. He considers the idea that the particles absorbed never actually enter the black hole, but rather are trapped in the boundaries of the black hole. Those boundaries we call “super translations.” So, for this to be possible, Joel Hruska again explains in the same article that, “the physical material (information) swallowed by the black hole never actually enters it at all. Instead, it’s smashed into the point of no return and encoded as a two-dimensional hologram.” This may seem incredibly hard to believe, but the theory behind them is very strong.

This information is then released in the form of quantum fluctuations. These are ripples in a quantum field, like an electric field. These quantum fields still exist even if there are no particles existing within them. Even if this is the case, these fields are never actually quiet. Described by Matt Strassler in Quantum Fluctuations and Their Energy, “Even in what we consider empty space, the fields are still there, sitting quietly in empty space, much as there’s water in the pond even if no wind or pebbles are making ripples on its surface, and there’s still air in the room even if there’s no sound.” The amount of energy that a single fluctuation can produce in just one cubic meter is millions upon millions of times larger than that of ordinary matter. This energy has enough power to cause mass destruction throughout the universe, and that is just within one cubic meter of these fluctuations! So, it is not impossible to imagine that these fluctuations release an incredible amount of information.

One must remember that these theories are still just that, theories. Because the dangers of black holes prevent us from being able to study them physically, the only other ways to are mathematically and theoretically. Though numbers don’t lie, the theory could be completely wrong, and what is known about black holes today could be at least distorted in comparison to reality. It seems that if Hawking’s theories are indeed correct, the idea of a wormhole within a black hole seems completely impossible, at least the way we envision it today. Even though, there are still many theories surrounding this idea, as it is still on the forefront of the astrophysics curiosities. There are surely many other theories like this as well, and it is reasonable to predict that most of these are incorrect.

Perhaps the most interesting theory is that of wormholes. This theory comes from the idea of spacetime and the curvature of it. Space time can be visualized as elastic, or almost like a trampoline, except it isn’t ejecting any planets into other parts of space. When a mass is placed on a trampoline, the trampoline sinks around the mass, and it creates a sort of dent in. Now, if one pictures spacetime as two trampolines on top of each other we can use Kevin Bonsor and Robert Lamb’s logic in How Time Travel Works to explain how this effect creates wormholes, “Placing the baseball on the top side will cause a curvature to form. If an equal mass were placed on the bottom part of the sheet at a point that corresponds with the location of the baseball on the top, the second mass would eventually meet with the baseball. This is similar to how wormholes might develop.” This is why black holes are often theorized to be wormholes as well. They have the largest mass and gravitational force in the universe that we know of, and if the spacetime curvature was large enough, it could be used as a much faster passage to another part of the universe. This is only one of the theories that could be proven by different mean if not for Hawking’s theories.

If Hawking’s theories are neglected completely, there is a world of opportunity to explore new ideas about black holes. If we neglect everything we know about them, there is a completely blank slate to start anew on. One could theorize that black holes don’t crush anything, but act solely as wormholes, or that the event horizon acts as a shield and keeps any particles out of the center of black holes. The possibilities are endless. If Hawking had never theorized Hawking radiation, many advancements in the studies of black holes would have been made, and the course of black hole studies could have been drastically different.

 

Hruska, Joel. “Stephen Hawking May Have Finally Solved the Black Hole ‘Information’ Problem.” ExtremeTech, 27 Aug. 2015, http://www.extremetech.com/extreme/212968-stephen-hawking-may-have-finally-solved-the-black-hole-information-problem.

Lamb, Robert. “How Time Travel Works.” HowStuffWorks Science, HowStuffWorks, 20 Oct. 2000, science.howstuffworks.com/science-vs-myth/everyday-myths/time-travel4.htm.

Strassler, Matt. “Quantum Fluctuations and Their Energy.” Of Particular Significance, 30 Aug. 2013, profmattstrassler.com/articles-and-posts/particle-physics-basics/quantum-fluctuations-and-their-energy/.

 

Definition- 3g

Not many things can mystify the mind like black holes do. When examined in depth, black holes aren’t all that confusing. Thanks to the discoveries of physicists, we have a pretty good hold on what black holes are, and how they function.  First, though, one must know the basics of the physics that we apply to black holes.

Gravity is the essence of black holes. Gravity is a well known force, as it has an enormous effect on the earth and everything on it. The factors that effect the force of gravity are the universal gravitational constant, the mass of said planet and the radius of said planet. Therefore, the gravitational force is different on each planet, not taking into account that distance between planets which also effects their gravitational pull on eachother. The force of gravity on earth is equivalent to about 9.8 meters per second squared. That is equal to the acceleration at which objects are pulled back down to earth. As a more advanced way of thinking of gravity, Tia Ghose defines it in What Is Gravity as: “the consequence of the fact that matter warps space-time.”

Now that there is a general understanding of what gravity actually is, lets examine how gravity works within a black hole and what a black hole actually is. Black holes form by the death of stars. When they die, most stars will just form white dwarfs, but the largest of stars will become black holes. These stars will quite literally go out with a bang, exploding and leaving behind nothing but their stellar core. The remnants of the star will then collapse in on itself, thus creating a black hole.

Black holes are essentially invisible on the black canvas of the universe, but their intense gravitation pull and it’s effect on the stars around it gives away the location. Though these elusive beings are depicted as a huge danger to the universe, and to our own planet, there is no need to be alarmed. As National Geographic explains in Black Holes 101, “if our sun was suddenly replaced by a black hole of similar mass, our planetary family would continue to orbit unperturbed, if much less warm and illuminated.” Our own milky way is out of the way of danger of any impending black holes.

The physics that we apply to black holes are governed by Einstein’s field equations. These equations stem from Einstein’s theory of general relativity. Simply, a “black hole,” isn’t a hole at all, but rather a singular point of such large gravitational pull that no object within the event horizon could ever gain enough velocity to escape its gravitational force. The event horizon is, as the author of What is a Black Hole explains, “the last distance from which light can escape the pull of the black hole. Inside the event horizon, everything, including light, must move inward, getting crushed at the centre.” Some theorize that a black hole could be used as a worm hole if entering only the event horizon in just the right way.

The gravitation pull of black holes is so intense that it even warps spacetime. Every mass in space slightly alters spacetime, almost like a dent. Think of spacetime as elastic, the heavier the object, the more of a dent it makes. Planets like earth make a small dent, but it is nothing in comparison to that of a supermassive black hole. This effect can actually be visible, Robert Britt describes and example of this in Einstein’s Warped View of Space Confirmed, “In observations of activity around black holes in 1997, researchers noted that gasses spiraling into the black hole wobbled, or precessed, like a top.” Unusual motions can also been seen of light when entering a black hole. In fact, the entire view of the universe is warped when looking at it from the view of the black hole.

As stated before, though black holes can sound very intimidating, there is nothing to fear. It is common knowledge that the milky way has its very own supermassive black hole at its center, and studies suggest that there are thousands more joining it. Nell Greenfieldboyce states in Center of Milky Way Has Thousands of Black Holes, Study Shows: “Their calculations show that there must be several hundred more black holes paired with stars in the galactic center, and about 10,000 isolated black holes.” These entities though, do not negatively effect the earth because we are lightyears away from their event horizons, and essentially out of danger.

Over the past decades, scientists have made incredible strides researching black holes, and there is plenty more to come. No on can really what is to come of further black hole research, but there is hope that black holes could be an essential piece of the puzzle when explaining how the universe began and how the universe will end. If that is the case, this research could change he course of history dramatically. Scientists are also diving further into the idea of wormholes and harnessing them for the use of time travel. Using Einstein’s rules of general relativity, many have theorized the existence of entities called “white holes.” A better explanation is given by Jessica Krall and Jessica Felhofer in The Future of Black Holes, ” The idea of wormholes first came from the idea of white holes. The equations of general relativity have an interesting mathematical property: they are symmetric in time. This means that you can take any solution to the equations and imagine that time flows backwards rather than forwards, and you will get another valid solution to the equations. If you apply this rule to the solution that describes black holes, you receive a white hole. Since a black hole is a region of space from which nothing can escape, the time-reversed version of a black hole is a region of space into which nothing can fall. So, just as a black hole sucks things in after they pass the event horizon, a white hole would spit these things out.” The future of black holes is more than promising and could mold the future of not just this planet, or the milky way, but the future of the entire universe.

References

“Black Holes.” Physics For Idiots, physicsforidiots.com/space/black-holes/.

“Black Holes, Explained.” What Is a Black Hole?, 25 Sept. 2018, http://www.nationalgeographic.com/science/space/universe/black-holes/.

Ghose, Tia. “What Is Gravity?” LiveScience, Purch, 3 June 2013, http://www.livescience.com/37115-what-is-gravity.html.

Greenfieldboyce, Nell. “Center Of The Milky Way Has Thousands Of Black Holes, Study Shows.” NPR, NPR, 4 Apr. 2018, http://www.npr.org/sections/thetwo-way/2018/04/04/599437677/new-study-shows-the-center-of-the-milky-way-has-thousands-of-black-holes.

Britt, Robert Roy. “Einstein’s Warped View of Space Confirmed.” Space.com, Space.com, 8 Mar. 2016, http://www.space.com/456-einstein-warped-view-space-confirmed.html.

Krall, Jessica, and Jessica Felhofer. “The Future of Black Holes.” The Future of Black Holes, http://www.felhofer.com/blackholes.htm.

Open Strong- 3g

  1. Nothing mystifies the mind like a black hole. For centuries, hundreds of brilliant minds have worked to understand the inner workings of black holes. Though tremendous strides have been made, it is impossible not to question all that we already know. Since black holes cannot be explored or excavated like planets, it is impossible to know if the physics we are applying to black holes are correct.
  2. Physics of earth is baffling enough, nonetheless that of a black hole. Physicists have applied the known laws of gravity to the properties of black holes. Truthfully, without the ability to explore black holes, we could never know if these reasonings are correct. In fact, we could limit our understanding of black holes by limiting the creative ways in which we think of them to that of the Earth’s properties. Perhaps, the more we apply he physics we know to black holes, the less we really know about them at all.

SawStop- 3g

Bosch Tools SawStop Lawsuit

A.    “Between the 8% fee and the additional hardware costs, your typical $400 jobsite saw would potentially rise in cost to around $625.

B.    This claim aims to demonstrate the cost effects of making SawStop mandatory on typical saws.

C.    This is a numerical claim because it uses numerical data to assess the possible cost rise after implementing SawStop.

D.    This claim is accurate on the basis that the numerical data is correct, the claim that the cost would go up is completely logical and accurate, as an additional piece of equipment would add to the cost of the saw.

 

SawStop Sues Bosch over new ReaXX Table Saw and its Flesh-Detection and Blade-Braking Tech

A.    “Bosch has a strong foothold in the portable table saw market, one that SawStop doesn’t really have any chance of encroaching upon.

B.    This claim states that Bosch is too big of an entity to be challenged by SawStop.

C.    This is a causal claim that draws the conclusion that SawStop does not really have a chance at defeating Bosch in the table saw market because they are lesser known.

D.    This is accurate considering that Bosch is very well-known and respected brand while SawStop is a much lesser company with less support from the public.

 

Table Saw Injury Lawyer

A.    “In 2012, California lawmakers tried to pass a law that would require all table saws sold after January 1, 2015 to have flesh-sensing safety technology.”

B.    This claims that the California legislative system considered passing a law to implement SawStop.

C.    This is a factual claim as it simply states that legislation at one point attempted to make SawStop a mandatory regulation.

D.    This is accurate as it correctly depicts the timeline in which the legislature was considering this.

 

U.S. CONSUMER PRODUCT SAFETY COMMISSION

A. “Very serious injuries, including fractures and avulsions, as well as amputations, have changed the lives of tens of thousands of consumers and impacted their families forever.”

B. This claim insists that the injuries caused by table saws has effected a large number of consumers as well as those close to them.

C. This is a causal claim because it insinuates that because the manufacturers rejected the use of SawStop, people continue to get injured and this is cause for such agony and grief of them and those close to them.

D. It is accurate that because SawStop is not implemented that a larger number of people will continue to be injured, but the effect on the families may be purposefully exaggerated.

 

Power Tool Industry Defends Table Saw Safety as Disabling Injuries Increase

A.       “They’ve argued that injury numbers have been inflated and that the government’s estimate of $2.36 billion in annual costs to society from table saw accidents.

B.       This claims that the cost to society through taxation to pay for the injuries caused by table saws is substantial.

C.      This is another numerical claim because it uses numbers to depict the cost to not only consumers but all of society for the lack of SawStop technology.

D.      This claim is most likely accurate, but the phrasing makes the cost seems much like much more by stating it as total rather the cost per person, which would be very minimal.

Visual Rhetoric- 3g

The Signs | Friendship & Mental Health | Ad Council

0:00- The scene opens with a visual of a stuffed opossum on a mantle, the house is clearly very dated and dimly lit.

0:01- The words “awkward silence” appear across the screen.

0:02- A man is sitting in an old chair with his legs crossed, he has an upright and confident stature about him. He is dressed in a very dated style but is a young guy around the age of maybe 25.

0:03- The words “how to know if you should reach out to a friend” appear across the screen.

0:04- The man is zoomed in on. His head is slightly turned and his eyebrows are raised, he looks as if he is about to speak.

0:05- He says a word and the scene switches to a close up view of an African American girl come on the screen. She is laying down and her mouth is open like she is speaking.

0:06- 0:14- Several faces flash across the screen for maybe a half a second each, each have straight faces and are speaking. Some are laying on beds and others are standing. They may be conveying a message about the problems that they are facing that you may not be able to see on the outside.

0:15- The man comes back on screen, he is speaking and using his hands to explain something. He has a pensive look on his face.

0:16- Zoomed back in on the man, he is still speaking, his head is tilted again and his eyebrows are raised.

0:17- He lowers his head and still speaks to the camera with a pensive face. He has a very arrogant feel about him and is speaking in an almost condescending way.

0:18- He is still talking with some head motion.

0:19- 0:21- He continues talking in the same manner. I presume he is speaking about a serious topic, trying to convince people to perform some action or get behind some cause.

0:21- 0:26- The screen changes to a view of a fish tank surrounded by books, the message “find out how you can help a friend with their mental health at…” The video ends there.

Without sound, I assume that the video is to convince the watcher to provide comfort or get help for a friend in need.