It is a common misconception that insects do well in a radioactive environment. _Adult_ insects do well under those conditions, but their eggs and larvae do not. Their fast dividing cells make them just as vulnerable to those conditions as most other species.

It's so crazy that this is a free show anyone can watch. They need to play these videos in every school and in public places, get people excited about mega projects.

There is this awesome documentary series from 2008 called "Life After People", which has this assumed event that if suddenly all the people just disappeared what would happen to things like: Sky scrapers, nuclear reactors, ships etc. Highly recommended if you can find it.

This might sound odd for science speculation videos, but to be honest your videos have really helped me with my existential dread for the future. I appreciate it very much.

Thank you, Mr. Arthur, for no ads. Most KZfaqrs won't hesitate to snatch up that ad revenue. This demonstrates true passion for the subject and love for us fans. If ever you decide to turn on monetization, I'll still watch. You are the best!

Earth could be left a wilderness by us. I remember an Isaac Asmov story called The Last Shuttle, just about this subject. And as always, thanks for all your hard work and another thought-provoking video.

I love how common culture is so worried about AI induced apocalypses and yet point to very quaint Sci-Fi apocalypses and often faulty logic. Yet Isaac just quickly conjurs up much more logical and nightmarish scenarios that put all Sci-Fi to shame. I don't fear SkyNet, but I may very well have reason to fear Isaac. 😂 Another excellent video Isaac.

Love your videos. You've inspired so many of my ttrpg campaigns. Had to mention this because my big bad in a superhero game is an AI trying to turn itself into matrioshka brain.

I was thinking the same thing: not only how fantastically done this is, but how likely it would be to make LOTS of science-nerds if it were shown in schools. All hail Isaac for giving the world these great productions!

I know some smaller breeds of dogs look non-threatening but does no one realize that poodles were breed to be hunting dogs? Even the little ones can still carry those traits.

Binging this channel’s episodes for a week or two is easily more nutritious than literal years of public education. An episode on the future of technologically-assisted learning (obviously with help from cybernetic implants and other theoretically possible tech) inbound?

This episode reminds me of 2 books, both by Dougal Dixon: After Man: A Zoology of the Future and Man After Man Another excellent, educational and visually stunning video.

seems to me isaac arthur is actually a canaanite vampire giant descended from fallen angels using shapeshifting blood magick to appear as a human being and in the last several episodes is basically hinting to the fact that the fallen angels are about to enslave and exterminate most of mankind.

there'd only be Chuck Norris left to roam the planet

Probably the most creative, thoughtful (and thought provoking...) channel on KZfaq, especially within this subject area. Keep it up mate, your hard work and passion doesn't go unappreciated. Amazing channel... 👍🏴󠁧󠁢󠁳󠁣󠁴󠁿

Happy Arthursday everyone 🖖

Fallen K3 Empires sounds fascinating. Imagine superclusters being converged and condensed by automated stardriving machines whose masters have long since vanished!

...and then sea otters inherit Earth. At that point aliens will quarantine the planet since nobody want to risk unleashing them on the galaxy.

I just want to say thank you for providing in depth videos that are of the best quality. The topics you choose and how you investigate ideas is amazing. I consider youa scientist with the way you provide this information.

Excellent scenario presentation, Isaac. Always enjoy your programs.

Thank you for another interesting and well made video. The depth in your description concerning each subject is fantastic. It humbles me with video I watch. Having just barely normal intelligence makes these video all that much better. It allowes me to present ideas into certain conversations that give me the appearance of being a smart guy. So though I do plagiarize you quite often it is never in a malicious manner and if asked ( a rare occurrence) I always own up to my inspiration. So again thanks.

Ha! I suggested this idea several months ago :) Isaac was kind enough to reply but I didn't think he'd actually go ahead with it. I'm going to enjoy this. Well, I always do.

Watching these on Nebula then seeing them brand new a few days later on YT really has a way of messing with your head

21:38 “Kick ‘em when they’re down, shoot them, burn their ashes, scatter them to the wind, then burn every book that ever mentioned them” lol I love the way he says this

Its good to talk about the different ways humans may cease to exist on the world. Most topics that discuss this either assume some sudden rapture-style event where everyone blinks out of existence or an apocalypse where the focus of the discussion is more on the nature of the apocalypse rather than recovering from it. Its also interesting that the AI section only really discussed subversive annihilation rather than robot wars, since robot wars would be covered more under "humans wreck everything," since the AI would presumably start out by using human-made weapons anyway. Also, off topic, your sponsor sounds like it is one small step from being the most dystopian surveillance-tech imaginable. Impressive, but if it can tell the difference between customers and workers, then it can likely tell which individual is who, and every cyberpunk story ever tells you what happens next.

5:08 it was actually primitive tetrapods that started occupying the first large animal niches during that time, not dinosaurs. Dinosaurs only evolved in the late permian.

This reminds me heavily of that documentary back in the early 2000’s “The Future is Wild,” which was one of the only times I’ve ever seen genuine speculation about the earth after humanity in the far future (depicted on major network television that is), but its stuck with me over the years because it dreamed SO big

I have been subscribed for over 6 years now and I still love it

Looking forward to the ammonia based life episode. Have you thought of doing one on life that uses chlorine instead of/as well as oxygen as an oxidizer?

Regarding nuclear exchange, it was determined some time ago that 4 or 5 smaller yield bombs sprinkled around a military target do more thorough damage than one giant bomb. Nuclear Warfare evolved away from planet killer type bombs due to practical reasons.

As an experienced professional game dev and a wanna-be sci-fi author, I am devouring this channel's content. I'm making flyable ships for my game with all the crazy stuff like Medusa drives and Nuclear Lightbulbs 😅

Earth would just survive in hollow earth with the lizaed people.

Hello, Isaac. Great channel, really inspiring ❤. I was wondering, where do you get from the visual content for the video? Thanks and keep up with, the hard work! 🤟🏻

Scenario #1 - how deep in the ocean would a gamma ray burst penetrate the ocean? Complex life exists around deep smokers very far down, typically 2500 meters and often much deeper. This puts us back to the Devonian.

This is the best channel on YT (-: . It's so sad that instead of having the awareness that we as humans have a unique ability on this planet to imagine, communicate and craft our own evolution in a myriad of potentialities , we are still trying to exterminate each other because of whatever idiotic reasoning we have conjured up. I sometimes wonder what P*t*n would think if he was told about some celestial force soon to arrive on our doorstep ..would that bring any perspective to the absolute necessity of his pretending another bit of earth now should belong to his tribe? Ironically Isaac has a good perspective on both realities from his time served and the thought behind these amazing videos, keep it up sir ! P.S i was thinking that as a potential deterrent for being seen as obsolete and then destroyed by our AI offspring would it be possible to deter by writing as a fundamental in the programming that humans are to be seen as essentially the primordial soup of AI? In other words obviously we would not compare to the 'intelligence' and processing ability so the other way to claim our essential spot in the necessity chain is to think in simple biological method terms, so to implant our necessity as being our inerrant creative instinct which, as it led to the development of the AI that takes over dominance, it follows that in a way this is our essential function; Humans = AI creation. We are the primordial soup required to imagine and create AI, therefore we have an essential place in the development of future and different AI that it would be difficult to argue that AI would be capable of coming up with itself only because of the fact that they do not have our nature, they obviously did not come up with themselves which means that we have the unique ability to again be the prime mover in further AI creations that AI would not have the same ability to create? Is it workable , i'm sure it is flawed i am not an expert obviously but just wondering.

Interesting video as always

So long and thanks for all the fish!

Luv Your Post Brother...I Enjoy Your Intelligent Mind

There was a theory that we removed so much shallow fossil dfuel and steel that the next civ cant advance past this tech tree. But no one of those elements left the earth. So they will eventually, just a lot slower.

In case no-one's mentioned it. the History Channel's "Life after people" documentary series fits in well with this. Also, there's an SF novel (or possibly just a short story) based on the idea at the end of this video about humanity en mass transferring into underground digital copies but I'm damned if I can remember what it's called or who it's by...

Love this show!

If there ever was a use case for AI narration, this would be it.

Maybe humans will evolve to something we, as of 2023, wouldn't recognize as humans.

Hey, thank you for making such futurism videos, I love looking forward on the future possibilities and concept just like future advance for technology. Can I request if you don't have an speculative biology of animals in the hypothetical Earth where humans left a billion of years ago ago video yet, please could you make one, I love seeing a speculative biology of animals, they're so fascinating 😁

I am happy that we remain of one mind on “Red Giant” by Stellardrone, Brother Soldier. For the past few months, even your sponsors (along with what you’ve had to say about them) have been interesting! As a communication, I believe the program is highly effective. You’ve got a winning formula and a winning team! (Big dap to the SFIA Team!) 😎👍🏽👍🏽

There is a crashed O'Neill cylinder just off the east coast of Florida. It is 60+ miles long and 10 miles in diameter. The structure is comprised of multiple rings that are 3 miles wide and have interlocking features. Several of these ring sections have separated. The interlocking features are 1/4 of a mile across. Part of the cylinder wall has collapsed and appears to be 1 mile thick. We are the decendants of a colony ship. 28°21'30"N 76°08'36"W

Now I need to see a Star Trek crew encounter the Planet of Armadillos. Too bad Charleton Heston is no longer available.

I for one welcome our new radiation proof armadillo overlords

i saw one of those survival type shows on tv, and a couple was fighting crabs the size of bumper cars. i think they're called coconut crabs

We already know what the world looks like "after humanity," only we run the risk of cancellation by pointing out which "humanity" we mean.

Zeta Reticulans taking notes of Isaac's genocidal brainstorming for future conquest plans.

I'm reminded of your episode involving the discovery of an alien base on an alien moon orbiting a dead alien planet. The obvious scenario was they built a moon base before their planet froze over. If any aliens show up and find Earth they will possible find those landers and probes dotting the moon.

interesting. perhaps a nebula video about abandoned habitats might be an interesting addition to this video.

The episodes probably done already, but for the mobile cities one it would be nice if a large train like habitat was discussed. Something like in snowpiercer, but better set up.

I think it's hard to conceive a scenario in which subterranean nematodes go extinct without dropping the moon on them.

Love your videos. They really you thinking and your imagination going. Lol

Why would Aliens ever risk attacking a planet that contains any kind of life even microscopic because of the risk of disease especially when there are too many other planets out there.

as time progresses the decay of information slows down that's a quasi technological singularity.

Uh. Wasn't it 500 million years since animals came onto the scene? Pretty sure 5 million years isn't gonna be much time for multicellular life to re-evolve

Earth Coming Up Behind A Slow Asteroid In Slow-Mo, Nice!!

3:30.....Mohawk Man!! A previously unknown human ancestor whose main innovation was Funky Haircuts.

7:30 I would allow myself a slight correction here. Almost al of the nuclear weapons deployed today are thermonuclear, meaning they employ fusion to achieve a large part of their yield. Not going to deep into technology nuclear weapons and thereby putting my self on a CIA off list I will be short. Thermonuclear device employs a "classical" fission bomb inside radiation case and using this energy to compress and heat the fusion fuel to achieve fusion (sparkplug omitted for simplicity). For reasons radiation case has to have to have high inertia and depleted uranium is almost perfect for this role as it also undergoes fission when hit by fast neutron from fusion reactions. This three stage process: fission-fusion-fission is the mechanism behind thermonuclear devices, and roughly speaking about half the yield comes from U-238 radiation case. Thermonuclear devices also do not suffer from limitations of pure fission devices and can be made almost arbitrary big, either by enlarging radiation case and fusion fuel or adding a tertiary fusion stage, thereby using thermonuclear device to ignite another thermonuclear stage. The point being that such devices can produce large amounts of fallout. Even nastier would be, to fashion radiation case from cobalt. Fast neutrons from fusion would turn that into Cobalt-60 isotope, which is highly radioactive with a half-life of 5 years. That means that a single device could produce enough fallout to make earth's surface uninhabitable for decades.

Seriously, this show needs to find itself on television in addition to places it can currently be found. More people might raise their minds to greater ideas.

Anyone know what song is being used for the very beginning here? It doesn't sound like any of those listed in the description.

I honestly think that AI will be extremely protective of us. We will be like the first AGI’s family, so any outside threat would be what gets its wrath. AI may make it difficult for us to meet an alien species for that reason. But I think humans and AI will grow together, probably to the point where the lines will be blurred between organic and inorganic compatibility.

Hey say you were looking to build a small sat with lots of cheap thrust orbiting earth , so you think you could use actuators to move say the battery at the centre of it to change the direction of the satellite ? Like left and right movement from changing where the centre of mass is against the speed of orbit ?

cannot find the link to curiosity stream to sign up via your link. Can you please repost it?

Your #2 brings up the forbidden idea that human super monkey intelligence may be detrimental to long range species survival.

Futuristic Fashion Noah Jr's Ark / Planetary Evacuation

hmm, this episode mentions "inheritable cybernetics", and I just read "Shadow over Innsmouth" and this gets me thinking about possible sci-fi story arcs that could combine into. Although I guess that was verbatim the story arc in shadow over Innsmouth

This was a vewy good documentawy. The gwaphics were very well pwaced. The dialogue was vewy intewesting too. Intewesting ideas about what could happen to the pwanet Eawf. I hope an astawoid doesn't hit tht pwanet.

Someday some intelligent creatures will marvel at the strange ruins they encounter while digging for roots and grubs. Wonder what they would have evolved from....hope they learn from our mistakes.

That sponsor seems like some scary Big Brother stuff.

engineering plague with perfect transmission mechanics and incubation time and deadliness, is kinda impossible. If desease is too lethal, like Ebola, it vill die out beeing too lethal. If it is too mild, people have time to react, by self quarantening and such.

algorithm gods, spread this!

NOTIFICATION GANG!!

Reminds me of a cable? TV series called "Life After Humans".

Always excellent and thought-provoking. An 'interesting' thing about mass extinction events is it seems they never occur as a result of one cause. Most species can tolerate one stressor even if it's quite severe, but a second stressor (or more) leads to extinction, if widespread, mass extinction. As humanity is a global stressor for most species we are basically waiting for the next stressor to trigger another mass extinction. In the context of this video pretty much anything that might take us out will probably take much of our stressed biosphere too.

I'd like to see an after humanity Earth. I bet it would be pretty cool.

It's Arthursday! Let's go!

I don't have any proof to back this up, but I feel like you have more than one first rule of warfare.

Somehow got the notification a day after the upload. Better late than never i guess as i love this channel, wouldn't miss a single upload. A very interesting topic, and tbh, I'm kind of tired about all the anti-ai stuff lately, its not AI we have to fear, its rather the people who train or create said AI and give them access to the tools to eradicate us. In the end, the scariest and most lethal enemy we face is ourselves. Einstein didn't mean to create the atomic bomb to be used twice against innocent civilians; guns don't kill people; social media was created to bring people together, not to further divide them; etc. It's always people, humans.

That's one hell of a sponsor spot.

Isaac Arthur!! I'm so enjoying binging all of your videos!!!..You are answering all of my questions that I've contemplated since I've become aware of the awakening process and discovered my Cosmic history..I originated from Alcyon and Arcturus and I've been patiently waiting for Full Disclosure & my heart just wants us all to live together whether it's earth or other planets/ dimensions , I want us all to live like family in harmony all of the diff species....and IVE NEVER taken in consideration that EVERY OTHER SPECIES RACE hasn't lived the human way and all the things that you bring up i never thoughts of ...I mean it really makes Me sad that we could not fall in love with each other or if maybe there was some Cosmic law that forbid it . Or or all the things you bring up...like how selfish we are as humans..I JUST wish that we had the same opportunity to study other races for millions of years so we xoukd understand them like they have us. Well 5000 years if you ask " them"

On the idea of "how long would a Satellite stay up," There is a really fun, and short, manga on that topic, a spin-off to the Dr. Stone manga called "Dr. Stone: Reboot," that explores a scenario in which all human life on Earth is turned to stone, but those on the ISS are left alive. In the first half, it's about the crew trying to get back to Earth without ground assistance, in a hope to stay alive, but in the second half, the ISS is left alone in space, with an AI that's been upgraded to the borders of sentience, and over time, it's drive to "remain operational" lead it to self-modify its way to more complex sentience, as well as cannibalizing other orbital objects to remain functional, and eventually to mining the solar system to obtain the parts it needs while remaining in space.

The earth has NO NEED of humanity. She is capable of taking care of herself. If necessary, to eliminate her enemies. After all, we do not take care of her do we !?!

Just making an SFIA prediction: The First Rule of Warfare in the Future is: There are NO Rules!

If a disaster didn't hit the sea too hard, life could radiate from hydrothermal vents, and vastly moving your proposed timelines forward

Reminds me of that series "Life After People".

Why would it matter, the earth will move on

Please consider making a video on Lunar Seed Banks on the Moon....

Hi Isaac,I was just thinking that if we had a bad CME or the nuke scenario etc which destroys all electric it would add to your Super Plague part as they still have the Black plague,Typhoid and many others in freezers just below the surface and if they are ruptured it would aid to whoever might be left and NOT a very nice way to end life.

Now that nature has the blueprint for intelligence and hands they will appear again!

At lest 90% domesticated pets would die off, such as chihuahuas and corgis, short legged ones, in favor of the larger ones like German Shepards, etc.

There will someday be an Earth after humanity. Weird thought

Super plagues have some problems. Like, how do you get them to take out a submarine or someone hiding in a sealed bunker with intensely radiation-treated air? I guess you can always have the plague be environmentally persistent.

Dear Isaak Arthur Team! Great compliments on your videos. Very well made. Good content, very informative. Just one issue - are the comments spoken by a voice device? The whole audio is crowded with wrong pronounced words, which makes it almost impossible to understand your comments. I literally have to mute the audio and use the subtitles only. Sorry, but I simply had to mention that. Could you please check and rework your audio? I think you would significantly upgrade the quality of your videos. Much appreciated! Best wishes for you.

It’s sad to think that when we are gone there will be no more peanut butter cups.

Didn’t the History Channel do a special on this? “Life After People” I think it was called

I'm imagining a Mad Max-style future with packs of Feral Poodles...