Looking Beyond 2050 - On Earth and in Space with Lord Martin Rees

[@raysems4086]

20:00 -- the foundational question of Don't Look Up.

[@guerrilla5002]

Always love listening to Martin and the few jokes he makes.

[@stanleykubrick8786]

The British accent is definitely enticing. Recent information says that humans might not be suited for prolonged space travel, cosmic rays might eat away at our cells, brain cells and digestive cells especially . We might be stuck here. Then we'll really need to learn to get along rather than run away from our problems only to have them follow us. Good luck.

[@JFrazer4303]

The NASA Ames space settlement studies of the '70s established that there are no new inventions needed to start, and that we can build for virtually Earth-like conditions anywhere off-Earth. O'Neill habitats can be built. In the inner Solar system small bodies, there are materials for effectively hundreds of times the presently available "land surface" as on Earth. In the Belt, thousands. The "Habitable zone" around the Sun goes out into the Oort Halo and beyond by varying the size of mirrors.

[@JFrazer4303]

No one who's knowledgeable about the real prospects of us getting into space says to escape. Everyone says that it's all the more imperative to take care of things down here. The old tired busted "disposable planet" trope only ever comes from ignorance of the possibilities, and usually from some irrational and non-rational intolerance and desire to find something (anything) to feel smugly self righteously self superior about.

[@MelliaBoomBot]

Shocking that there's only 550+ likes. My goodness. What a clear mind this man has, analytical, witty, a true amalgamation of intelligence and wisdom. And so eloquent...a treasure of a talk. I will take notes the second time round! For me tho, Im a social scientist but secretly wish Id studied physics and astronomy..I;ve read about Moore;s Law, that technology halves in price and doubles in capacity every 18 months or 2 years. So something technological that costs a million pounds today will cost £30,000 in 10 years and the capacity will be at least 5 times as advanced. THAT is what keeps me going, as long as the right few people are addressing the right issues...eg plastic: I am positive something will eventually be invented that dissipates all harmful plastic on earth. Maybe not in 10 years time but 20 or 30. We cannot think that problems today will be solved by today's technology. I do think there are a lot of unethical practices out there that continue bad practise but shame on them but the children of tomorrow will solve this, I hope...

[@hurithinkbefore1340]

Everybody should watch this!

[@amaliaantonopoulou2644]

Anyone who watched this After the pandemic? it's impressive that the video predicted the pandemic 6 years ago!

[@shirleymason7697]

One of my favorite speakers.

[@rapauli]

Great. Be sure to hear the last few minutes.

[@benwarnock]

05:30

[@TheRobdarling]

I didn't realize so many of the commenters on this thread are so much smarter than this man. I'm sure they also are much more accomplished academically and professionally and all of these people published many books on all of these subjects.

[@janepiepes2243]

Yes ! I mentioned above that by expecting us to believe they're smarter than Rees, they prove they're not.

[@JFrazer4303]

"I saw a youtube" is about it, or "do your own research!"

[@justintaylor4614]

cool

[@oraz.]

30:00

[@incognitotorpedo42]

Rees is a pretty smart dude. I think he has things mostly right. Kind of missed the boat on the status and future of life extension technology, though.

[@janepiepes2243]

You expect us to believe you're smarter? Huh. That alone proves you're not.

[@barbossa70]

@Cplusplus Dude u.were.never.a.scientist.

[@Rocky.7707]

@Cplusplus Dude Mad respect to you lad.

[@zapfanzapfan]

Overpopulation as a risk seems to have been substituted with concern for the falling birth rates. Japan, China and South Korea have falling populations and we may all go that way when we can no longer prop up the population numbers with immigration. Population decline might be the great filter...

[@superdoubt]

Rees presents a pretty rosy picture for the future of humankind, I guess everything is just dandy...

[@JFrazer4303]

If we don't self destruct. He days pretty much that, very clearly. What did you want? Another video about how we'll revert to cannibalism when the oil runs out? Those are a dime a dozen.

[@vladimir0700]

I don’t know what planet Rees has been living on but, here on earth, we’re in for a great die off of the human population.

[@JFrazer4303]

Very many hope so. I never get a response when I ask people who seem to advocate that, if they been voluntarily "fixed" or how many kids they have. Complaints about overpopulation usually mean other people are breeding too much. It's nice to have a few people like Rees or Freeman Dyson who think about the future.

[@ricbrunner3880]

I love this, I love him, but we are not going to make it to the class one civilization. To many short term thinkers compared to long term thinkers. The shot term thinkers have control.

[@kimfreeborn]

Well within the Overton window.

[@JFrazer4303]

23:44 geoengineering We call it Terraforming, and this is the planet we'll apply it to. Terraforming of other bodies might be interesting in the long term, but certainly not just for living space. It's not a technical quick fix, it's a 5k year+ job. 6+billion year job. By the time the Sun would naturally have fried the biosphere, the Milky Way is going to start colliding with M-31 in Andromeda, so we'll want to be well underway taking our tailored husbanded star and whatever planets and of our Dyson cloud of habitats we want out away from the maelstrom for a few hundred million years or so. Of course by then whatever "we" are, will have spread all through this galaxy, and when M-31 is accessible, it too. It could be that we avert that tremendous loss of usable energy and real estate from happening. As Rees says: we are to those who'll be there, what bacteria are to us. Will they be using ships and planets and suns? Not likely. Somewhere in what they will know, we want to plan so that we will have made contributions to what they're capable of or their libraries, instead of all ours disappearing. It may be no more interesting than reading ancient civilizations' grain harvest tax records.

[@robertpoen5383]

By 2050 global temperature will have increased to at least 3 degrees centigrade over the 1850 baseline, maybe more.

[@madhtrr]

Yes, we need to deal with climate change. But no amount of "carbon credits" will offset the environmental footprint of population growth. We have two choices: 1) Draconian population control measures. 2) Colonize other planets. I prefer that latter.

[@RabbitHole2006]

wow bill gates

[@Raziel007Bey]

I feel like if they still Einstein as a example of genius then they most definitely not in the kno

[@Nani17CR7]

And your grammar is far from an example of genius.

[@starwarsisdead5731]

Lord? Man, England will knight anyone these days.

[@drew1035]

A knighthood is not what gives someone that title. And Martin Rees has contributed more to society most people ever will. In fact, people like him are helping to counter balance the multitude of low IQ, sarcastic and ignorant, waste of lives that plague the planet right now.

[@mattaaf1]

Doesn't know agw is a hoax. Down vote.

[@TheRobdarling]

Matt Fisher ignorance isn't bliss.

[@ludalindahl]

boring, nothing new

[@TheRobdarling]

Luda Lindahl good to know you're so much more informed. How many books have you published? Any degrees?