- 16 hours ago
In this video, we explore some mind-bending hypothetical scenarios that are sure to leave you wondering. Imagine living in a world where everything is pink, or being the only person left on Earth after a catastrophic event. And what if you've already met a time traveler and didn't even realize it? Prepare to have your mind blown as we delve into these intriguing thought experiments.
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00:01Try to imagine what it would be like if you woke up one day and everything around you was pink.
00:06And I mean literally, not just having a think pink vibe.
00:10Everything from your walls to your bed, desk, armchair, and even the clothes you wear would be rosy.
00:17Would you be able to live in such a world for a whole week?
00:19Your first thought might be, is there something wrong with my eyes?
00:23For most people, the answer is no.
00:25Even if there was something wrong with your vision, the chances are you wouldn't end up seeing just one single
00:31color for the rest of your life.
00:33Most people who are colorblind are born that way.
00:36Even though there are rare cases in which you can develop this condition later in life.
00:41And even those people who are totally colorblind see the world only in black, white, and gray.
00:48Most people with colorblindness have problems perceiving certain colors.
00:51Their greatest difficulty is distinguishing the shades of the same color.
00:56But let's get back to our pink world, shall we?
01:00Is pink a special color for our brain?
01:02When you think about pink objects, you most likely associate them with emotions like love and kindness.
01:08In some cases, looking at the color pink for longer periods of time can actually make people feel more agitated.
01:15In sports, teams have been known to paint the opposing team's locker room pink in an attempt to decrease their
01:22energy and performance.
01:24This tactic was implemented by an American coach who believed the all-pink room would mess with the minds of
01:30the opposing teams.
01:31What if I told you that this specific shade of pink you woke up to had special powers, though?
01:38In the 1970s, a scientist named Alexander Schaus found a color that made people feel calm and relaxed.
01:46After lots of experiments to test the effects of different colors on people's behavior, he found this specific color which
01:53he named the Schaus pink.
01:56His study showed that when people looked at a bright color, they lost strength in their muscles.
02:01But when they looked at the color blue, their strength returned to normal.
02:06The researcher talked about this in public lectures and even showed it on TV.
02:10He invited a bodybuilder and concluded that they could not do a single bicep curl after staring at the pink
02:17color.
02:18Schaus was so sure of his discovery that he even suggested that prisons should paint holding cells pink
02:24to calm people down.
02:26Two officers at a U.S. prison tested this idea by painting one holding cell pink
02:31and found that some inmates became calmer after being in the pink cell for 15 minutes.
02:38In any case, Schaus's original research hasn't been proven to be true by the following studies,
02:43but that doesn't mean you can't test it out for yourself.
02:46There's no way to tell how your brain might react to living in a pink world for a day, a
02:51week, or even a whole month.
02:53It all has to do with your previous experience with this color.
02:58If it was a happy one, you might actually like living in a pink environment.
03:02However, it may be hard on your eyes after a certain point.
03:07But we can't say that the colors we surround ourselves with don't affect us.
03:12Carl Jung, a famous Swiss psychoanalyst, developed a theory of color psychology,
03:17also known as Jungian color theory.
03:20He believed that each color meant something different somewhere in the back of our mind
03:25and had the power to reveal deeper thoughts.
03:29He thought that colors could be used to understand an individual's innermost thoughts and feelings.
03:36For example, he considered the color blue to be formal and precise,
03:40while green made people feel relaxed and patient.
03:44While looking at the color yellow, people became more sociable.
03:47And if you liked the color red, it meant you were competitive and strong-willed.
03:52Pink isn't the only color people have studied to see its effects on the brain.
03:57Let's take green, for instance.
03:59Would you feel better living in a green world?
04:02Well, looking at this color can actually help you focus better.
04:06Studies have shown that people who take short breaks to look at pictures of green things,
04:11like trees or grass,
04:13concentrate better on boring tasks and make fewer mistakes.
04:17This is because green is a soothing color that is easy for our eyes and brain to see.
04:23I mean, it's the color we often find in nature,
04:25so it's no wonder most of us find it soothing.
04:29When it comes to red and orange, we should use these in moderation.
04:33So, no orange houses for me, thank you.
04:36These colors can make you feel more energized and active,
04:39but too much can be bad.
04:41Researchers concluded that being surrounded by red or orange for long periods of time
04:46can make us fussy.
04:49Let's not forget about blue.
04:50It can make you feel calm and rested.
04:53But it can also make you feel gloomy, especially those darker shades.
04:58Waking up in a blue world might come with its own set of problems,
05:02depending on the shade.
05:04Then, there's the problem with blue light.
05:06It's the type of light screens emit.
05:08At times, it can be bad for your sleep
05:11because such a light can trick your brain into thinking it's still daylight.
05:15It can make it hard for your body to produce the hormones you need
05:18to fall asleep at the right hours.
05:20To avoid these issues, it's a good idea to avoid blue light screens
05:24for at least an hour before bed.
05:27How about our eyes?
05:29Is staring at the same color for longer periods of time any good for us?
05:34Not really.
05:34If you look at one color for a long time,
05:36for starters, it can change the way you see other colors.
05:41Back in the day, people used old computer screens
05:44that featured a lot of green hues.
05:47Because they were exposed to this color a lot during a normal working day,
05:51they would see everything with a purple tint for a while
05:53after they stopped using the computer.
05:56The explanation is simple.
05:59The part of the eye that was responsible for seeing green got tired.
06:03It got compensated by other parts of the eye that were more rested,
06:07those responsible for the red and blue hues.
06:09What do you get when you combine red with blue?
06:12That's right, purple.
06:14These days, most people use computer screens that are white with black letters,
06:19so this problem doesn't happen as much.
06:21This change in our eyesight is also explained by the McCullough effect.
06:25It's a phenomenon that happens when people perceive a change in color of an object
06:30after it has been looked at for a long period of time.
06:34In 1965, Celeste McCullough found out that if you looked at colorful stripes for too long,
06:40it could affect how you saw things for months.
06:44Her experiment had people looking at colorful stripes,
06:47then at black and white ones.
06:49If you do this for long enough,
06:50you'll end up seeing the monochrome lines in color too.
06:54Just like how a camera flash can make your vision go blurry for a bit,
06:58this effect can last for a long time if you look at the stripes for too long.
07:03Does the color you stare at make any difference to your eyesight?
07:06Well, not really.
07:08There is no evidence to suggest that a certain color can trigger the McCullough effect.
07:12It's rather caused by a combination of factors,
07:15like changes in the way the brain processes visual information,
07:18fatigue of the eye muscles,
07:20and changes in the way the eye's retina responds to light.
07:25What about light?
07:27Exposure to some sunlight is important for our well-being,
07:30but you've surely heard this one since you were little.
07:33Don't stare directly at the sun.
07:34Is there really any evidence that it affects our eyes?
07:38Or is it just another myth?
07:40Turns out, it is indeed dangerous.
07:44When you stare at the sun for an extended period,
07:47ultraviolet light enters your eyes.
07:49It then gets through the internal lens onto the retina
07:52and reaches the back of the eye.
07:54When this light-sensitive tissue is exposed to UV rays,
07:58it can get damaged.
08:00You'll end up seeing spots for longer than just a few seconds,
08:04or even have permanent eyesight damage.
08:07This process can happen quickly,
08:09even in just a few seconds of direct sun gazing.
08:13Picture this.
08:15It's a lovely Sunday morning,
08:16and you rise from your bed,
08:18do some stretching,
08:18and open your window to a gorgeous day with clear skies.
08:22But hold up.
08:23Something's odd here.
08:24The usually jam-packed street is completely deserted.
08:27Where did everyone go?
08:29You take a closer look,
08:31and to your surprise,
08:32you realize that you're the only soul on this planet.
08:34What's your next move?
08:36Let's get real here.
08:37The answer to that question is simple.
08:39You can do anything and everything that your heart desires.
08:43The world is your playground,
08:44and you can create your own adventure.
08:47Want to drive a sports car at lightning speed on the freeway?
08:50Go ahead, because there's no traffic to hold you back.
08:54Feel like playing a round of golf from the top of a skyscraper?
08:57Why not?
08:58Who cares if you end up breaking a window or two with your golf ball?
09:01Have you always dreamed of living in a massive mansion?
09:04Guess what, now you can.
09:06You have a world of possibilities in front of you,
09:08and nothing can stop you from experiencing them all.
09:11Okay, so you've had your fill of all the excitement and thrill,
09:15and you're now starting to ponder on the question of,
09:17what's next?
09:19Maybe it's time to get down to business
09:20and figure out the reason behind the world's sudden emptiness.
09:23Could there be anyone else out there?
09:25What if you're not the only one left?
09:27You might start searching the city,
09:29and even venture beyond its limits.
09:31But the world is a big place,
09:32and you might not come across another living soul.
09:35That thought alone can be a bit terrifying, right?
09:38So let's move on to more important matters,
09:40such as how you're going to survive in this desolate wasteland
09:43that's now your kingdom.
09:45It's time to face reality,
09:47and plan out your next steps
09:48to ensure that you can make it through this situation,
09:51no matter what.
09:53The first thing on your to-do list
09:54is finding food and clean water.
09:56Of course, you'll have a good supply of both for some time,
10:00but perishable items such as fruits and vegetables
10:02won't last forever,
10:04so it's best to consume them first before they go bad.
10:07After all,
10:08there's nobody operating the power stations
10:10that power the refrigeration units in grocery stores,
10:12so they will inevitably shut down.
10:15Speaking of which,
10:16you also need to consider your water source.
10:18In the initial stages,
10:20try to scavenge every single bottle of water
10:22you can find from the nearby stores,
10:24and bring them back to your sanctuary.
10:27But, unfortunately,
10:28you'll eventually run out of bottled water,
10:30and you'll have to come up with a way
10:32to filter your water supply.
10:33This will be a vital task
10:35to ensure your survival in the long run.
10:37Think of laying your hands
10:39on a portable water filter like this one.
10:41With that,
10:42you will be able to take water from any source,
10:44be it a river or even a hole you dug up yourself,
10:47and drink it in no time
10:49after it's been cleansed in this bottle.
10:51So, you've indulged in all the perishable food items
10:54you had stocked up on for days,
10:56weeks,
10:56or maybe even months.
10:58Now it's time to start thinking about the future,
11:00and your long-term food supplies.
11:03Since there's no electricity
11:04to keep your fridge and freezer running,
11:06you're going to have to rely
11:07on non-perishable food items
11:09such as rice, beans, and canned goods.
11:11These will be your trusty companions
11:13in your quest for survival.
11:15However, as time passes,
11:17you'll need to think about sustainable food sources,
11:19and that's where farming skills come into play.
11:22You should start learning how to grow your own food
11:25before your stocks run out completely.
11:27Let's talk about medical supplies.
11:29They're a crucial aspect of surviving
11:31in a world where there's no one to turn to
11:33for medical assistance.
11:34Your best bet is to rate as many pharmacies
11:37as you can find
11:37and stock up on future supplies
11:39to prepare for any potential emergencies.
11:42It's essential to be extra careful too,
11:45since there won't be any doctors around
11:46to help you out if you sustain serious injuries.
11:50When you're the last human on earth,
11:51you're going to need to learn
11:52a whole bunch of survival skills
11:54if you want to keep on keeping on.
11:55I'm talking hunting, first aid, cooking, and plenty more.
12:00It's not just about farming and filtering water,
12:03although those are important too.
12:05Right now you're probably relying on a bunch of other people
12:08without even realizing it.
12:10But in this new world,
12:11you're going to have to fend for yourself.
12:13The good news is that you've got all the time in the world
12:16to learn new things and expand your knowledge.
12:19Remember those libraries and bookstores
12:21you used to walk past without a second glance?
12:23Now they're your ticket to becoming
12:25the ultimate survival expert.
12:27And yeah, you won't have the internet to help you out,
12:30but you'll learn to do things the old-fashioned way.
12:33You might also want to have some survival gear
12:35with you at all times.
12:37You may get in all sorts of trouble
12:38with nobody to help you but yourself.
12:41So having a hiking toolbox like this one
12:43could be a lifesaver.
12:44It has everything you need to find your way
12:46and stay warm and safe even in the wild,
12:49not to mention the city.
12:51As much as you may enjoy the solitude,
12:53you're going to need some sort of companionship eventually.
12:56Sure, you could get yourself a pet or two,
12:58or even build your own personal zoo
13:00if you're feeling ambitious.
13:02But be careful.
13:03You don't want to get eaten
13:04by a pack of wolves or lions, do you?
13:07Maybe just stick with a dog or a cat,
13:09or perhaps a bird that can mimic your voice
13:11so you can pretend you're having a conversation.
13:14Either way, you're going to need some sort of connection
13:16with another living being,
13:17so start thinking about your options.
13:20So, you've got this whole world to yourself, right?
13:23And you can live in any mansion,
13:25palace, or hotel you want.
13:27Sounds great, doesn't it?
13:28But let's be real here.
13:30Living in luxury all the time can get old fast.
13:33Plus, these buildings will start to crumble
13:35and fall apart if there's nobody to take care of them.
13:39Maybe run away from the city altogether then.
13:41You can go anywhere.
13:42The world is your oyster.
13:44But before you start packing your bags,
13:46remember that you need to find a way to get there.
13:49The problem is that all the cars and trucks
13:51will be useless because their fuel will go bad
13:53after a few years.
13:56So, you might want to choose a place
13:57to settle down for good.
13:59And in my opinion,
14:00it's probably a good idea to avoid places
14:03with extreme weather conditions.
14:04I mean, dealing with a hurricane, blizzard,
14:07or tornado all by yourself
14:08doesn't sound like a walk in the park.
14:10Don't forget about the clothes.
14:12Yeah, I know.
14:13You can totally raid all the stores
14:15and try on all the funky outfits
14:17or dress like a celebrity for a while.
14:19But let's get real.
14:20You're going to need clothes
14:21that will actually help you survive.
14:23So make sure you have something for every season
14:25and keep plenty of warm clothes and blankets around.
14:28An emergency blanket may come in handy as well.
14:31Stock up on these just in case.
14:33It doesn't take much space
14:34and can save your life.
14:36Even if you move to a place
14:37where it's hot all the time,
14:39it can still get chilly at night
14:40so you got to be prepared.
14:43Hey, I know talking about
14:44being the only human left on Earth
14:46can be a total bummer.
14:47So let's switch to the brighter side of things.
14:50With nobody around,
14:51you can find all kinds of ways
14:52to entertain yourself.
14:54Sure, survival skills are important,
14:56but you can also learn new hobbies
14:58and get creative.
15:00Imagine learning to draw,
15:01make sculptures,
15:02or write your own book.
15:03You could be the next Stephen King,
15:06except without any competition.
15:08What would you call your masterpiece?
15:10The lone survivor?
15:11The ultimate survival guide?
15:13The possibilities are endless.
15:15Just don't forget to keep talking to yourself
15:17or your pet parrot
15:18so you don't forget how to use your own voice.
15:25You know how Stephen Hawking said,
15:27the best evidence we have
15:28that time travel is not possible
15:30and never will be
15:31is that we have not been invaded
15:33by hordes of tourists from the future.
15:37But what if these tourists come to our time,
15:40but they do it secretly?
15:42You may even have met one of them.
15:45Let's see the most famous time travelers.
15:50Meet Orin.
15:52He's a cyborg who came to us
15:53from the year 2050
15:55to stop the coming end of the world.
15:57In 2020,
15:58he appeared on a TV show
16:00where he said the whole world
16:01was inside the Matrix.
16:03Then he hit the headlines
16:05and gave an interview
16:06to a popular YouTube channel.
16:09As proof that he's a cyborg,
16:11he demonstrated his robotic voice,
16:13which can be made
16:15in a simple computer program.
16:17He also called himself
16:19We
16:19because he declared himself
16:21a collective consciousness
16:23that had come to save humanity.
16:27Orin became famous
16:28for his predictions
16:29about the near future,
16:31but it turned out
16:32that many experts
16:33had already announced
16:34these forecasts earlier.
16:36He also said
16:37that a huge corporation
16:38was suppressing humanity
16:39and we were inside
16:40a complex computer simulation.
16:43If we don't improve
16:44or care for each other
16:46and nature,
16:47the end will begin
16:47in 2050.
16:49Orin no longer appears
16:50on major shows,
16:51but he has a small fan base
16:53of people
16:53who love all sorts
16:55of fantastic theories.
17:00Another time traveler
17:02is Adam Archen,
17:03who came to us
17:04from 2045.
17:05There was an interview
17:06with him on YouTube
17:07where he shared some details
17:09about the future
17:10of the U.S.,
17:11after which the video
17:12went viral
17:13and hit the lines
17:14in many newspapers.
17:17Archen reported
17:18that the last official
17:20president of the country
17:21would be the daughter
17:22of Martin Luther King III,
17:25and she would become
17:27the greatest U.S. president
17:28in history.
17:30Another exciting event
17:31that Archen announced
17:32is supposed to happen
17:34in 2028.
17:35He said that people
17:36would learn about
17:37the existence
17:38of extraterrestrial civilizations.
17:40He added
17:41that these creatures
17:42wouldn't come
17:43from outer space.
17:44The traveler
17:45also noted
17:46that the world
17:46would switch
17:47to a single digital currency
17:48and all cash
17:49would disappear.
17:52Of course,
17:53no one believed him,
17:54so the experts
17:55conducted a lie detector test.
17:57And Adam Archen
17:58successfully passed it.
18:00He said that he had
18:01a chip in his hand
18:02to facilitate time travel.
18:04An extraterrestrial civilization
18:06would arrive on Earth
18:07in 2028,
18:08and in 2045,
18:10people would be closer
18:11to robots.
18:13The lie detector
18:15didn't state
18:15that Archen was lying,
18:17but this doesn't mean
18:18he told the truth,
18:19since the device
18:20can be deceived
18:21with the help
18:21of special training.
18:23In any case,
18:24in 2028,
18:25we will find out
18:26whether Archen
18:27was right or not.
18:31All these time travelers
18:32arrive in the past
18:34and, for some reason,
18:35don't use knowledge
18:36from the future.
18:37What would you do
18:38if you could go back
18:3950 years?
18:41Perhaps,
18:41you would invest money
18:42in shares
18:43of some young company
18:44that will become
18:45a big, expensive corporation.
18:47In that case,
18:49everyone would believe
18:50that you really came
18:51from the past.
18:52And by the way,
18:53one guy did it.
18:54He invested $800
18:56in the stock exchange
18:57and made $350 million
19:00out of it.
19:00This guy's name
19:02was Andrew Carlson
19:03and he hit
19:04a big jackpot
19:05in 2003.
19:08However,
19:09he didn't manage
19:10to enjoy a rich life
19:11because the FBI
19:12came for him.
19:13Andrew sold some stocks
19:15and bought others
19:16and did this
19:16very successfully.
19:18Thus,
19:18in a few months,
19:19he became a millionaire.
19:22The Securities Commission
19:23couldn't believe
19:24in such coincidences,
19:25so it called the FBI.
19:29During the interrogation,
19:31everyone was sure
19:32Andrew would begin
19:33to justify himself
19:34and say he was lucky.
19:36But instead,
19:37he calmly replied
19:38that he came
19:39from the year 2256
19:40with the help
19:41of a time machine.
19:44Of course,
19:45no one took it seriously.
19:47But when the FBI
19:48started looking
19:49for information
19:50about this man,
19:51they found nothing.
19:53Andrew Carlson
19:54had no documents.
19:55He was not
19:56in any database.
19:57He just appeared
19:58out of nowhere
19:59and started making
20:00a lot of money.
20:02He was interrogated
20:03for about four hours
20:05and he behaved
20:06pretty calmly.
20:07It seemed as if
20:08he was telling the truth.
20:09However,
20:10he didn't tell them
20:11the time machine's location.
20:14When the press
20:15found out about this man,
20:17he immediately
20:18became a celebrity.
20:19Well-known news sites
20:20began to write
20:21about Andrew Carlson.
20:23Articles have appeared
20:24in Japan,
20:25Australia,
20:26Germany,
20:26the UK
20:27and other countries.
20:28And of course,
20:29journalists started calling
20:30the FBI
20:31to find out more details
20:32about this guy.
20:34And the FBI told them
20:36that the whole story
20:37was fiction
20:37and that there was
20:38no Andrew Carlson.
20:40Information about him
20:41appeared on an internet resource
20:43known for its fake news.
20:45At some point,
20:46the article about
20:47the time traveler
20:48somehow got into Yahoo,
20:50where it went viral.
20:51So,
20:52as we see,
20:53all statements
20:54about time travelers
20:55are either fiction
20:56or a lie.
20:59Conversations about
21:00such travels
21:01appeared thanks
21:02to fantastic films
21:03and books.
21:04Pop culture
21:05has greatly influenced
21:07this fantastic concept
21:08and created
21:09several theories
21:10claiming that
21:11time travel
21:11is real.
21:12And some people
21:14believe that,
21:15especially those
21:16who are far from science.
21:17But what do
21:18real scientists
21:19think about this?
21:20Are such trips
21:21really possible?
21:22Let's try to find out.
21:26Scientists say,
21:27yes,
21:28time travel is real
21:29because we're now
21:30traveling in time.
21:31Time is moving forward
21:32and we're moving with it.
21:34We call it a journey.
21:36But if we need
21:37to get into the future
21:38or go back to the past,
21:40everything is
21:41much more complicated here.
21:43Remember Einstein's
21:44little theory of relativity?
21:46It says that time
21:48moves relative
21:48to the observer
21:49and has no constant value.
21:51To understand better,
21:53here's a simple example.
21:5510 hairs on your head.
21:57Is it a lot
21:58or a little?
21:5910 hairs in a bowl of soup.
22:01Is that a lot
22:02or a little?
22:03Everything is relative
22:05and depends
22:05on the conditions.
22:07The same thing happens
22:09with time and space.
22:10If we move
22:11at a tremendous speed,
22:13close to the speed of light,
22:14then time slows down for us.
22:17The perception of time
22:18becomes different
22:19for a person who's running
22:20and for one who's standing still.
22:23If we're near
22:24some heavy object,
22:25let's say
22:26a thousand times
22:27heavier than the sun,
22:28then the time
22:29next to this object
22:30also slows down
22:32thanks to its strong gravity.
22:35In this sense,
22:37time travel is possible.
22:38If you're an old person
22:39and meet your friend
22:40as young as he was
22:4150 years ago,
22:43why are you so young?
22:45Oh, I've been flying in space
22:46at a tremendous speed
22:48all this time,
22:49that's all.
22:50But this doesn't mean
22:51that this friend
22:52just sat on the ship
22:53for 50 years
22:54and didn't age.
22:56No,
22:56time was different for him.
22:5810 years for you on Earth
22:59is a long period of time,
23:01but for him,
23:02these 10 years passed
23:04like half an hour.
23:06Gravity and speed
23:07bend time.
23:09For this reason,
23:10astronaut Scott Kelly,
23:11who spent a year and a half
23:13in orbit,
23:13became 5 milliseconds younger
23:15than his twin brother
23:17after coming to Earth.
23:19All this time
23:20Scott spent inside the ship
23:22flying in orbit
23:23at high speed
23:24and he was also
23:25further away
23:26from the gravitational center
23:27of the planet.
23:28So,
23:29time was slower for him
23:30by 5 milliseconds
23:31than for his brother.
23:34Objectively,
23:34time always runs
23:35at the same speed,
23:36but its speed changes
23:38inside the perceptions
23:39of different observers
23:40under different conditions.
23:42That's what the theory
23:43of relativity is about.
23:46But,
23:47what about jumping
23:47into the future
23:48or the past,
23:49like in movies?
23:51Wormholes will help you
23:52with this.
23:52This is something
23:53like tunnels
23:54that pass through space
23:55and time
23:56and can connect
23:57different time segments
23:58in different places
23:59in the universe.
24:00They are like cheat codes
24:02that can break
24:03the laws of the universe.
24:05Wormholes are elusive,
24:06have different sizes,
24:07are unpredictable,
24:09appear in space,
24:10and vanish.
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