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Reality is far stranger than it appears. Join us as we explore mind-bending discoveries that completely reshape how we understand the world! From immortal jellyfish and lightning hotter than the Sun, to antimatter worth twice the US GDP and tardigrades that could outlast humanity — these jaw-dropping facts will leave you questioning everything you thought you knew about science, nature, and our planet.
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00:00This is the device that we're using to try to answer the question,
00:03what happens to antimatter if you drop it in the gravitational field of the Earth?
00:08Welcome to WatchMojo.
00:10And today we're looking at discoveries that proved how reality is far stranger than it appears
00:15and reshaped our understanding of the world around us.
00:18It turns out that our very privileged perspective on the universe
00:22from Earth's comfortable biosphere may tell us a lot about our reality.
00:29There is a jellyfish that can reverse its own aging.
00:32Imagine all it took to gain immortality was to just turn back time in our own bodies.
00:37That is exactly what the species Turritopsis dornii, often called the immortal jellyfish, does.
00:43The tiny jellyfish, Turritopsis dornii, is one of the few animals that can be considered truly immortal.
00:50This jellyfish possesses a biological ability unlike almost any other multicellular organism.
00:56After reaching maturity, it can revert to its juvenile polyp stage through a process known
01:01as transdifferentiation, where specialized cells transform into different cell types.
01:07Instead of dying from age, it effectively restarts its life cycle under stress.
01:12While predators and disease still limit survival, biologically, it has no fixed lifespan.
01:18In theory, this cycle can repeat indefinitely under ideal conditions.
01:23Potentially, this can be repeated indefinitely,
01:29resulting in a jellyfish that won't die of old age.
01:33For this jellyfish, mortality and time are not strictly linear.
01:37Lightning is hotter than the surface of the sun.
01:40Lightning may last only a fraction of a second,
01:42but during that instant, it becomes one of the most extreme phenomena on Earth.
01:47The image is unmistakable.
01:49Lightning is one of the most incredible natural phenomenons,
01:53and one that scientists are still learning about.
01:56A single bolt of lightning can reach temperatures of around 30,000 Kelvin.
02:00For comparison, that is roughly five times hotter than the sun's surface.
02:06The intense heat superheats the surrounding air, causing it to expand explosively.
02:11The result of that explosion is a shockwave that we call thunder.
02:15Every lightning strike releases an enormous burst of energy,
02:18sometimes carrying hundreds of millions of volts.
02:21Because it happens so quickly, we often underestimate its intensity.
02:25But lightning reveals that our planet's atmosphere can produce forces
02:29rivaling the most powerful conditions found in space.
02:32Lightning is a powerful force of nature, and one to be cautious of.
02:37Your brain edits out your nose from your vision.
02:39Our brain is constantly at work.
02:42In almost every corner, our senses take in various stimuli from the surrounding environment.
02:47But there is one thing the brain doesn't really care about.
02:50My nose, my nose, my kingdom for a nose.
02:54Your nose is always visible in your field of vision, yet your brain filters it out.
02:59This is part of the brain's approach to dealing with stimulus overload.
03:02The solution is to erase them.
03:05This selective editing helps humans ignore constant background sensations,
03:09such as clothing on your skin.
03:11The curator of all of this is the brain,
03:13which works tirelessly to interpret and record our reality.
03:17What is real?
03:19How do you define real?
03:21If you're talking about what you can feel, what you can smell, what you can taste and see,
03:27then real is simply electrical signals interpreted by your brain.
03:30Perception isn't raw input.
03:33It's an edited experience.
03:34What you experience is not raw input, but processed output shaped by neural efficiency.
03:40Humans share about 60% of their DNA with bananas.
03:45Bananas are amongst the most popular fruits in the world.
03:48Rich in fiber and nutrients, they are a staple in every home.
03:51But there is more to the banana beyond the peel.
03:55Humans share about 40 to 60% of their DNA with bananas in terms of basic cellular functions.
04:01But do you know we also have 50% common DNA with a banana?
04:07I do love bananas.
04:09Humans and bananas may not necessarily look alike,
04:12nor have similar cognitive abilities,
04:14but the shared footprint is proof that core biological functions are conserved across life.
04:20Evolution builds on shared molecular foundations.
04:23Genes governing cell division, metabolism, and basic growth are remarkably universal.
04:29The divide between plant and animal is vast in form, yet close at the biochemical regime.
04:35What?
04:36I know!
04:37At the molecular level, we are connected.
04:39There are more possible chess games than atoms in the observable universe.
04:44In the world of chess, there is a metric called the Shannon number,
04:48calculated by American mathematician Claude Shannon in 1950.
04:53The number is an estimate of the total number of unique playable games of chess that are possible,
04:59roughly 10 to the 120th power.
05:01He did this rough estimate, this rough number, to show that if you had a computer
05:06and it was trying to work out then the future of the game
05:10and trying to work out all the legal moves and where this game was going to go
05:13so that he could make decisions of how to play next,
05:17then the computer would never make a move.
05:20What makes this number special is that by comparison,
05:23the observable universe contains only roughly 10 to the 80th power atoms.
05:27A simple 64-square board generates more potential variations than physical matter itself.
05:34Checkmate.
05:35The Shannon number demonstrated that profound mathematical richness could emerge from minimal rules.
05:41In chess, this is observed through an explosion of combinational growth
05:45that is beyond intuitive comprehension.
05:48The universe's material contents seem vast,
05:51but even a simple structured system like chess can exceed it in theoretical outcomes.
05:57Checkmate.
05:58Checkmate.
05:58Checkmate.
05:58Dang.
05:59Earth has a squishy interior.
06:01Beneath what appears to be solid ground lies a semi-solid mantle that slowly flows over geological time.
06:07In many places, the weight of these massive ice sheets press down on the planet's crust
06:12and the viscous mantle underneath.
06:15This weight caused the surrounding land to rise
06:18and the sea levels to fall relative to that rising land.
06:22That flow is a movement that drives plate tectonics, volcanic activity, earthquakes,
06:27and even reshapes continents and our planet's history.
06:31It's all thanks to the mantle's squishy consistency.
06:34During the last ice age, massive glaciers compressed the crust, causing it to sink.
06:39As the ice melted, regions such as Canada and Scandinavia began rising
06:44in a process known as post-glacial rebound.
06:47Satellite data have confirmed that some areas, including parts of West Antarctica,
06:52are still rebounding today.
06:54The ground beneath us is not fixed.
06:57It responds to surface changes over millennia.
07:00Earth behaves less like a rigid stone and more like a slow-moving system.
07:04We live on a dynamic planet that is constantly in motion.
07:08And understanding the many drivers of sea level rise is critical to anticipating
07:13and adapting to our ever-changing home.
07:16Tardigrades could potentially survive the end of humanity.
07:20There are microscopic organisms invisible to the naked eye
07:23that push the extremes of survival on this planet.
07:26Intense heat, freezing cold, high acidity, and radioactivity.
07:32These harsh environments don't seem hospitable for life.
07:36But some organisms not only survive, but thrive under such extreme conditions.
07:43Foremost among them are tardigrades.
07:45Often called water bears, tardigrades can survive extreme heat, freezing, radiation,
07:51crushing pressure, and even the vacuum of space.
07:54They achieve this by entering cryptobiosis,
07:57a dehydrated state that effectively halts metabolism.
08:01In this suspended condition, they can endure for years.
08:04Some researchers suggest that tardigrades could survive catastrophes that eliminate humans.
08:09Tardigrades rewrite the book of survival.
08:12Their resilience in harsh environments reframe survival as a spectrum rather than a hierarchy.
08:18Dominance in size or intelligence does not guarantee endurance.
08:22Understanding the limits of life in these extreme conditions on Earth
08:26may provide scientists with clues of how life could possibly exist elsewhere in the universe.
08:33Survival, it turns out, can be microscopic.
08:35And some of the smallest creatures on Earth may be the last to persist.
08:40There is a place on Earth where it hasn't rained for millions of years.
08:44In Antarctica's McMurdo Dry Valleys, rainfall hasn't occurred for roughly 2 million years.
08:50Here, the air is so cold and dry that snow sublimates into vapor before melting.
08:56Akin to Martian landscapes, the Dry Valleys are seen as a perfect testing ground for astrobiology research.
09:03The Dry Valleys are very similar to Mars' environment.
09:08I mean, it's incredible.
09:09All of the microbial life on the continent has kind of concentrated and sequestered from the valleys.
09:15Despite the harsh conditions at the location, microbial life persists in isolated pockets.
09:21Reshaping assumptions about habitability, McMurdo Dry Valleys serve as a real-life phenomenon
09:27that demonstrates life on Earth does not require lush forests or temperate climates to endure.
09:33It can survive in near-sterile, frozen deserts.
09:37Even in extreme stillness, life adapts.
09:40McMurdo Dry Valleys is one such place where this rings true,
09:43and where the boundaries of life are stretched on a daily basis.
09:46As the stewards of this planet, we shouldn't tolerate extinction.
09:52Most of Earth's fresh water is inaccessible.
09:55Believe it or not, usable water on our blue planet is rare.
10:00Everything that lives on land, animal or plant, depends upon it.
10:06Although water covers 70% of Earth's surface, only about 3% is fresh.
10:11Of that, nearly 70% is trapped in glaciers and ice caps,
10:16with much of the remainder stored deep underground in aquifers.
10:20That leaves us with less than 1% of total global water easily accessible for human consumption.
10:26The water flowing from taps represents a tiny fraction of planetary reserves.
10:31Oceans dominate the globe, yet drinkable water is scarce and unevenly distributed.
10:36It is an illusion of abundance.
10:39The world is not water poor, but it is fresh water limited,
10:43making it more important that we manage the small percentage carefully.
10:46We are not alone in our need for water.
10:55But we have the ability to ensure the fresh waters of the world do flow.
11:03And we alone can determine how they are shared.
11:08Humanity is becoming short-sighted.
11:11History has witnessed humanity's short-sightedness.
11:14Now, this is becoming a literal reality.
11:16A third of children worldwide are now short-sighted.
11:20That's according to new research.
11:22The study, published in the British Journal of Ophthalmology,
11:25examined data from 5 million children and teenagers in 50 countries.
11:29It showed a dramatic increase in cases of myopia over the last 30 years.
11:34By 2050, more than half of the world's population is projected to be short-sighted,
11:39up dramatically from current figures.
11:41Increased indoor lifestyles, prolonged near-work activities,
11:45and reduced exposure to natural daylight are altering how our eyes develop.
11:50As we expand knowledge digitally, our biological vision narrows.
11:55Human biology is not really adapting well to modern habits.
11:58We also know that a lot of time spent within, say, the close confines of a room,
12:04if they're doing homeschooling and things like that,
12:06that may have been a contributing factor as well.
12:09But certainly we have noticed a change.
12:11It is a paradox that reshapes humanity's interpretation of progress.
12:15Evolution does not always move toward improvement in every trait.
12:19Evolution is also privy to environmental changes
12:22that can in turn influence anatomical evolution.
12:26Our species is not only reshaping the planet,
12:29but the planet we construct is subtly reshaping us.
12:32Climate change is coming faster than expected.
12:35Climate shifts are no longer abstract projections.
12:38Climate patterns once considered stable are shifting within decades.
12:43The rapid increase in greenhouse gases in the atmosphere
12:46has warmed the planet at an alarming rate.
12:49Scientists now predict that by 2050,
12:52more than 77% of major global cities will experience weather
12:56unlike anything previously recorded in their regions.
12:59It isn't just about the planet getting warmer,
13:02but also becoming unfamiliar.
13:04Temperature patterns, rainfall cycles,
13:07and seasonal extremes are already shifting.
13:10Urban planning models built on historical averages
13:12may no longer apply.
13:15Infrastructure, agriculture, and public health systems
13:17will have to adapt to unfamiliar environmental baselines.
13:21Once a distant project,
13:23climate is now an evolving present.
13:25The map of normal weather is being redrawn
13:27within a single lifetime,
13:29and cities around the world are feeling the brunt of it.
13:32In 2024, global CO2 emissions hit an all-time high,
13:35and we saw the most significant annual increase
13:38since modern measurements began in 1957.
13:40The last 11 years have been the 11 warmest on record.
13:44Earth's magnetic pole is creeping westward.
13:46Unlike the geographic north pole,
13:49Earth's magnetic north pole doesn't stay put.
13:51The magnetic field is currently undergoing rapid changes,
13:55possibly signaling the imminent flipping of its polarity.
13:59Once drifting slowly across northern Canada
14:02at about 15 kilometers per year,
14:04it has accelerated dramatically since the 1990s.
14:08Today, the planet's magnetic north is racing towards Siberia
14:11at speeds exceeding 50 kilometers per year.
14:15Data from European space agency missions,
14:18such as SWARM,
14:19suggest that shifting flows of molten iron
14:21within Earth's outer core
14:23are altering the magnetic field.
14:24Satellites constantly update navigation systems
14:28to keep up with this drift.
14:30Even the compass, humanity's ancient guide,
14:32requires recalibration.
14:34The invisible shield that guides compasses
14:36and protects against solar radiation is dynamic.
14:39The ground beneath us may feel stable.
14:42The forces below are anything but.
14:44The chaotic motion of outer core fluid
14:47causes a tangling of magnetic field lines
14:50and a global drop in field strength.
14:52The ocean produces more oxygen
14:54than the Amazon rainforest.
14:56When you think of oxygen,
14:58you probably picture forests,
14:59but most of the oxygen you breathe
15:01comes from the ocean.
15:02We all know there's more water on Earth than land.
15:05Just in case you don't,
15:06the seas cover 71% or 362 million square kilometers
15:11of the Earth's surface.
15:12Rainforests are often called the lungs of the planet,
15:15but it's microscopic photoplankton in the ocean
15:17that generate between 50 and 80% of Earth's oxygen.
15:21These tiny marine organisms are invisible to the naked eye,
15:24yet essential to every breath we take.
15:27Floating near the water's surface,
15:29phytoplankton use sunlight
15:30to convert carbon dioxide into oxygen through photosynthesis.
15:34Plankton use the Earth's solar energy
15:36to convert CO2 and nutrients into carbohydrates
15:38and the vital molecules we all need to survive.
15:41Ocean health, therefore,
15:43directly affects atmospheric stability.
15:46If marine ecosystems decline,
15:48oxygen production could shift.
15:50The sea isn't just scenery,
15:52it's life support.
15:53This fact reshapes how we define environmental priorities.
15:57Protecting oceans isn't just about marine creatures,
16:00it's about air itself.
16:02There is enough plastic to cover all of Earth.
16:05In our time on this planet,
16:07humanity has produced so much material,
16:09including concrete, steel, and asphalt.
16:11But there is one material
16:13that has exceeded its contemporaries
16:15in pure propensity.
16:17Plastic.
16:17Plastics are better than any other material.
16:20There is enough plastic alone
16:22to blanket the Earth's surface in a thin layer.
16:24Humanity has unintentionally created
16:26a new planetary layer,
16:28one composed not of rock or soil,
16:31but synthetic material.
16:32Future archaeologists, if any exist,
16:35would easily identify our era
16:37by synthetic residues
16:38embedded in soil and ocean sediment.
16:41Waste has become a planetary force,
16:43and it will persist longer than our lifetimes.
16:46In geological terms,
16:47we are leaving a signature.
16:49Our buildings, packaging,
16:51and discarded products
16:52have become part of Earth's physical record.
16:55Civilization is no longer just cultural,
16:57it's sedimentary.
16:59It needs to be fundamental change
17:01across the board that's going to be hard,
17:03and I think it has to include
17:04reducing the amount that we're producing,
17:06or at least of the amount of waste.
17:08We landed on the lunar surface
17:10with less computational power
17:11than your phone uses to buffer a YouTube ad.
17:14When humans landed on the moon during Apollo 11,
17:17the onboard guidance computer
17:19operated with kilobytes of memory.
17:21The Apollo Guidance Computer, or AGC,
17:24was at the time the most advanced
17:26compact computer ever built.
17:28That is less than a digital greeting card.
17:30Today's phones are estimated
17:32to be roughly 100,000 times more powerful,
17:35yet with that limited computational capability,
17:38engineers executed
17:39one of the most complex missions in history.
17:42From navigating space
17:43to calculating trajectories
17:45and landing astronauts safely on another world,
17:47the Apollo 11 mission
17:49was a historical breakthrough
17:50in human spaceflight.
17:52Today's devices are exponentially stronger,
17:54but rarely tasked with survival-level stakes.
17:57The moon landing wasn't powered by supercomputers,
18:00it was powered by ingenuity.
18:02Well, it proved that the United States
18:05could accomplish tremendous goals
18:08if they worked together as a team.
18:11As technology evolves even faster,
18:13human determination may matter even more.
18:16Silicon transistors outnumber human cells.
18:19Modern microchips contain billions of transistors.
18:23With every passing year,
18:24global semiconductor production continues to accelerate.
18:27That acceleration has led humanity
18:30to create an artificial population
18:32of microscopic switches
18:33that exceed the biological building blocks
18:36of our own species.
18:37It still does blow my mind.
18:39I think even if you learn more about it,
18:41it blows your mind even more.
18:42There are now more silicon transistors on Earth
18:45than human cells.
18:47More than an exponential growth,
18:49this represents a shift in planetary composition.
18:51In a single lifetime,
18:53humanity has created more electronic building blocks
18:56than nature produced in us
18:58through millions of years of evolution.
19:00The digital infrastructure we rely on
19:03forms a parallel ecosystem
19:05that processes information
19:07at scales beyond the reach
19:08of biological brains alone.
19:11Technology is no longer peripheral.
19:13It's numerically dominant.
19:15The big machine,
19:16at the end of the day,
19:17is used to transfer a pattern,
19:19which we store on a mask,
19:21onto a wafer.
19:22And then at the end of the day,
19:23you cut them in pieces,
19:25you package them,
19:26and then you end up in your phone.
19:28Earth's days are getting longer over time.
19:31A day feels constant,
19:33but it isn't.
19:34Earth's rotation is gradually slowing
19:36due to tidal interactions with the moon.
19:38Lots of things affect the rotation of the Earth.
19:41Foremost among them
19:42is the sloshing of oceanic tides
19:46on and off the continental shelves.
19:48These tides are primarily raised by the moon.
19:50As gravitational forces transfer energy,
19:54Earth loses rotational speed,
19:56lengthening days by about 1.8 milliseconds per century.
20:00Hundreds of millions of years ago,
20:02a day lasted around 21 hours,
20:04which means there were more days in a year.
20:07Fossilized coral growth rings confirm
20:09that ancient years contained more days
20:11than modern ones.
20:12This slow shift reveals that even something
20:15as seemingly constant as a 24-hour day
20:17is not permanent.
20:18Time stretches,
20:20and our planet's time evolves.
20:22Just contemplate the fact
20:23that we are on a spinning planet
20:27in orbit around the sun,
20:30like a pirouetting dancer
20:32in a cosmic ballet,
20:34choreographed by the forces of gravity.
20:37Over vast geological timescales,
20:40sunrise and sunset drift subtly apart.
20:43The clock we live by isn't fixed.
20:45It's slowly rewriting itself.
20:48Antimatter costs two times the GDP of the U.S.
20:51At CERN, scientists create and study antimatter particles
20:55under highly controlled conditions.
20:57In this building,
20:58they are making the rarest and most expensive material
21:02in the known universe.
21:06Antimatter annihilates on contact with normal matter,
21:09releasing enormous energy.
21:11Yet we've only produced tiny fractions of a gram.
21:14It is one of science's greatest technical achievements,
21:17and it's most expensive.
21:19The estimated cost to produce just one gram of antimatter
21:22is roughly $62.5 trillion.
21:25For context,
21:27that is more than twice the United States' annual GDP.
21:31Antimatter's rarity and production difficulty
21:33make it the most expensive substance ever created.
21:36This staggering price tag highlights
21:38how difficult it is to manipulate
21:40the building blocks of reality
21:41and the extremes of scientific research.
21:44Some of the universe's most fundamental materials
21:47aren't just valuable,
21:49they are practically priceless.
21:50It's what we all dream about,
21:52which is to find something completely new
21:54that kind of upturns the apple cart.
21:56Earthquakes from superfood.
21:58Avocados are everywhere,
22:00from toasts to smoothies to salads.
22:02Global demand for avocados has surged
22:05in recent decades,
22:06transforming agriculture.
22:08Avocado has become one of the world's trendiest foods.
22:11As the poster child of millennial healthy eating,
22:14this superfood is now a mainstay for foodies everywhere.
22:17But beneath the surface,
22:19this demand has geological consequences.
22:22In parts of Mexico,
22:24groundwater extraction to support avocado farming
22:26has intensified so dramatically
22:28that it's linked to land instability
22:30and seismic activity.
22:32When groundwater reserves are depleted
22:35faster than they recharge,
22:36the ground above can shift,
22:38compact, or destabilize.
22:40It's a reminder that supply chains
22:42don't just move products,
22:43but also water, energy, and geological stress.
22:47What seems like a harmless food trend
22:49connects to tectonic consequences.
22:52Sooner or later,
22:53that stress gets to be too much,
22:55and the fault ruptures,
22:57triggering an earthquake.
22:59Suddenly, your grocery list isn't just economic,
23:02it's planetary.
23:03Complex life on Earth
23:05might be extremely rare in the universe.
23:07What if humanity isn't one of many,
23:10but one of almost none?
23:12The Rare Earth Hypothesis suggests
23:14that while simple microbial life
23:16may be widespread in the universe,
23:19complex, intelligent life
23:20might be extraordinarily rare.
23:22This Rare Earth Hypothesis
23:25claims that an extraordinary,
23:27once-in-a-galaxy run of good luck
23:29led to the evolution of our planet's rich
23:32and diverse life.
23:33Earth's habitability depends
23:35on a surprisingly delicate convergence
23:37of various factors.
23:38This includes a large, stabilizing moon,
23:41active plate tectonics
23:43that recycle nutrients,
23:44a protective magnetic field
23:46that shields the planet
23:47from harmful radiation,
23:48protective gas giants like Jupiter
23:50that deflect asteroids,
23:52and a stable orbit
23:53within the habitable zone.
23:55Many planets may possess
23:56one or two of these traits.
23:58Having all of them at once
24:00is cosmic luck.
24:01Not only would this make humanity's existence
24:03truly special,
24:04but it would also be
24:06a statistical feat.
24:07It's very possible
24:08that a combination
24:09of extremely unlikely factors
24:11means it's extremely rare
24:13for planets to spawn intelligence.
24:16Which of these facts
24:17flipped your perspective of the world?
24:19Let us know in the comments below
24:21and subscribe for more mind-bending content.
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