Alex Filippenko: Supernovae, Dark Energy, Aliens & the Expanding Universe | Lex Fridman Podcast #137

Here are the timestamps. Please check out our sponsors to support this podcast. 0:00 - Introduction & sponsor mentions: - Neuro: www.getneuro.com and use code LEX to get 15% off - BetterHelp: betterhelp.com/lex to get 10% off - MasterClass: masterclass.com/lex to get 15% off annual sub - Cash App: cash.app/ and use code LexPodcast to get $10 2:08 - Universe expansion 3:32 - Dark energy 11:00 - Scientific revolutions 22:50 - Asteroid hitting Earth 26:22 - Giant solar flares and the power grid 33:22 - Elon Musk and space exploration 38:13 - Exoplanets 45:35 - Traveling close to the speed of light 47:45 - Traveling faster than the speed of light 56:11 - Intelligent life in the universe 59:46 - Fermi Paradox 1:09:24 - Finding alien life would be bad news 1:14:20 - UFO sightings 1:27:30 - Universe expansion speed 1:32:14 - The universe is infinite 1:36:30 - What happened before the Big Bang? 1:40:46 - Roger Penrose 1:44:20 - Nobel Prize for the accelerating universe 2:05:55 - Supernova 2:17:19 - The greatest story ever told 2:21:16 - Richard Feynman 2:28:09 - Meaning of life

He doesn't believe in the supernatural but then teaches nonsense as fact. Nothing he has stated is nor can be proven. Alllllll theory.

What the rudbeckia do yo on o

I remember being behind Alex in the airport at Keflavik International Airport (Iceland) right after the partial solar eclipse in Iceland back in 2015! I didn’t realize it was him at first. There wasn’t any line, but he _initially_ stood out to me because he was a random guy with a hilarious shirt that said “My PIN number is the last 4 digits of Pi,” which I chuckled at. I looked up at his face and gasped! He noticed me when I did that and I think he realized I recognized him, lol. 😆

Why you so fake...,

Always thought the robots could take human frozen embryos or dna to new planets. Then once they have built the colony bring humans to life & act as parents & teachers until they are able to self sustain. Bound to be many practical reasons why not.

I would totally ignore ants on the sidewalk unless they started making explosions in which i would probably do something 🤔

Who down votes stuff like this? I mean were they looking for a scene from Fast 5 and came upon this?

Swamp gas guy

Before we get to any of this how do you even leave the firmament, and if it takes so long to get to Mars then how have we sent Mars rovers there?

Get Mike Tyson on here

Plasma/electric universe only limited to external forces which we’re not privy to!

It’s hard to deny the ufo evidence as provided by folks like Cmdr David Fravor, be it aliens, extra dimensional craft, or who knows. It is clearly SOMETHING.

This man has an almost child like curiousity of our reality most seem to loose with adulthood. It's really quiet admirable.

love the show.. but man can u please try being more not like a machine and why suit?

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Ever just want to watch a video .. nothing else just relax and watch a video .. without anything else

1:00 would be great if you don't laugh and chuckle in every sentence. Destroys the focus and seriousness of topic.

Hey everyone. Gona share something with you. Also sometimes I share this, the Bible says that GOD loves us so much that he sent his son JESUS CHRIST to this earth and HE lived a perfect sinless life.And JESUS went to a cross and gave HIS life for us.And rose again in 3 days and who ever will receive JESUS AS THEIR SAVIOR AND ASK HIM TO COME INTO THEIR HEART AND FORGIVE THEIR SINS,HE WILL TAKE YOU TO HEAVEN.

Lex sounds normal at 1.25x speed

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Wow another great show, another entertaining knowledgeable guest!!! 🙏🏼 Thanks

maybe we're slowly shrinking.

I like how he is always smiling when explaining science, His love and passion for science is powerful

Blackhole theory, they are portal gates for the great beyond.

Having the knowledge of the existance of billions and billions of planets just like the earth , and plenty other planets on the galaxy and this dude still think we are alone, or at least in his words, ''much more likely to be the case'' thats very weird...

I can hear George W. Bush saying, "I'm gonna call this guy the explainer-in-chief." Who hasn't had this exact conversation sitting there on that sack of seed. Galileo Galileo Figaro

This conversation depressing.

He is so wrong 😂😂 he think humans know prerty much anything. That proves he really doesnt not shit. I will show this summer the aliens I know. He will get a shock and will learn

He is smart but does not understand what is coming and the technolgy we will have and share soon with other beings from other worlds. Its easy to travel faster than light human just dont understand or have knowledge of it yet but soon.

I beg to differ. And so do many others. Just because you receive a "Noel Prize", black holes and dark matter don't become fact, (I am now ready to receive all the respondant abuse.)

it's so fucking awesome how much joy alex gets from just sharing what he knows with us and it always brings me joy as well. it's just so fucking pathetic that people are still yelling about jesus and allah and shit in 2021 instead of worrying about how the fuck we're gonna get any further than the moon.

Brilliant

does it seem like there are Einstiens in the Einstiens of that shirt?

This guy's wickid smaht.

He kinda sounds like Feynman! Great interview Lex!

He looks like Robin Williams

I’m not worried about ai controlling the world . I’m worried or certain that who controls ai will enslave the planet. We are in huge trouble.

just simply stating the obvious, a pointless video

Brilliant!

38:12 Man, you can't terraform mars... People need to stop dreaming you will have to live under the dome. There is no atmosphere. So you have to create one. You can do that. That's not the problem. the problem is there is NO MAGNETIC FIELD. Without a MF no matter how much atmosphere you create it's going to get blown into space by the solar wind. You would have to continuously generate the atmosphere as it gets blown away. Soon, (a few thousand years) you're going to run out of water used to create more new atmosphere and then Mars will become an even dryer desert than it is today. So if any of you get the chance....let this MF know about the MF. : )

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Pull walls invite them to . 5thkind i think he will Also be good ...

You must always keep the imagination of your childhood. Studies into consciousness are the key to keeping us from these philosophical pit falls.

The greatest discovery in the history of mankind, "Cosmology" equals fraud. Clean new energy source based on how the Sun actually works soon to be commercially available. Although nonradioactive and radioactive material not needed to work it will breakdown radioactive material with in hours not decades. Their corporation already estimated to be worth a trillion dollars. Their plan includes replacing fission reactors with theirs since their fusion reactor can provide the steam to the power turbines and be able to transmute the radioactive fuel to useful and profitable nonradioactive elements, elements that will no longer need to be mined from the earth. The first one should be up and running in a year. If this was being faked as some are clamming why would large corporations have already invested in them? Do you truly believe these corporations are that stupid? MIT sees no technical reason why theses fusion reactors can not be up and running in a year or is MIT stupid as well? Despite shysters like “cosmologist”, particle and quantum “physicist” the future is here. isslows.info/life/bK2nf5rPdX3Fmro/v-deo.html Hydrogen and distillation of water will be dirt cheap to produce; hydrogen powered cars and trucks not electric will be the future. This new fusion reactor could be used to power ships possibly trains as well. We will not need their gas, oil, fission, solar, wind or water power any more. This is what real scientist not shysters have discovered www.thunderbolts.info/wp/ . “Cosmologies,” particle and quantum “physicist” could not even figure out how the Sun works, why would you believe anything they have to say? When you go to one of these shyster channels and they talk about history of science they never talk about the discoveries of plasma scientist not even a Nobel prize-winning one and his warning to “Cosmology” isslows.info/life/a8zLnITJqJfJ2sw/v-deo.html, the many discrepancies in Einstein's theories (whoops there just went all of cosmetology), the electric universe theory and how a startling number of their predictions have come true, how there is a very rational and mathematical explanation for the double split beam experiment (whoops there just went half of quantum mechanics) isslows.info/life/mavCnpe3qHvUy8g/v-deo.html [what really must chaff them this guy is a computer programmer: LOL] and the big bang (actually a derogatory term for the speculation) is fact. Some go as far as to close public comment in an effort to keep this information from the public. NASA did not, possibly still not even put current detecting probes on their satellites. This goes to show how biased and unscientific these supposed researchers are. “Everything is just too complicated for the average mind to grasp; just trust us, keep sending us government grant money and filling our college classrooms with tuition-paying students.” Those who do not learn from history are bound to repeat it. As impressive as this technology is most likely it is too little too late to stop global warming. If shysters were not allowed to stall science for over 35 years and have us spend billions on their shyster projects, global warming would not be an issue today.

What's up lex love your podcast I'm inspired by yourself& Joe Rogan "There's gotta be some other life forms out there !

Woah! 🤯

In 1999 scientists performed the Delayed Choice Double Slit Quantum Eraser experiment and demonstrated beyond all doubt that the concept of linear time and logical reasoning as you have talked about it, is false. The experiment utilised entanglement to decided whether or not there was an interference pattern in path A via detectors observing which slit was being used in Path B, Path B was longer than Path A and therefore, that determination was not in chronological order. Path B's detectors were down a path that was longer than Path A, demonstrating that light has a property contained within the 4th dimension that "determined" the interference pattern in path A through a correlation called entanglement. Path B also utilised an Eraser after the initial sensors that could remove the certainty of the slit observation and render path A back to an interference pattern, demonstrating beyond any shadow of a doubt that the findings of non-linear interference could occur. The future determined events from the past. This works because the researchers could identify, based on the known speeds of light, which photon landed on the CMOS sensor in path A and were able to correlate them to Path B, to which detector was being used, either 1, 2, 3 or 4. 1 and 2 observed the slit, 3 and 4 destroyed the certainty of which slit was being observed, all of this data was captured concurrently from the same laser beam as well. When looking at Path B detectors 1 and 2's dataset timed against Path A there was no interference pattern on Path A (as those detectors were classically aligned to identify slit 1 and 2 thereby collapsed the wave function of uncertainty in the past), when looking at Path B detectors 3 and 4, there was an interference pattern as these detectors could not capture with any certainty, which slit was being used. Because these detectors were positioned AFTER the interference detection on Path A, we can conclude that the wave function exists in the time dimension, and the wave form collapse occurs there. In short, the most fundamental form of logic, A causes B, and B does not cause A has been DEMONSTRATED as FALSE and therefore, must be dismissed. A new form a logic has been shown. A and B are correlated, that is all we can say.

what if there are millions of years ahead of us and they already sent artificial intelligence out and that's what's watching us and sending relaying back what they have found and they've been watching us for hundreds of thousands of years

I want to be a mongolorian.🚀🏹

Dark Energy could simply be Multiverse gravitational energy. The accelerating expansion of our universe may be the only indication that a Multiverse actually exists. The phenomenon could be explained entirely by General Relativity. No magical property of space needed.

13:02 Lex sees many things as sad. Please be happy king, you deserve to see it as such !

You should get Bob Lazar on your show. Might give you some good insight on aliens,ufo cover ups, and reverse engineering of spacecraft from out of our solar system

What about the discovery of gravity waves? He said gravitrons? What did I miss?

Oh Lex, you are so brilliant yet so clueless. Just like myself. Other than you r need to work on confidence while speaking.

I’m sorry but I couldn’t get through 10 mins of this one. Something about his cadence had me 😴

Aliens don't exist because space is fake and the earth is an enclosed system. We cannot leave this realm of ours #FlatEarth

Lex is high.

I still say that when your basic formulas lead you to believe that you have missed over 90% of the universe. It's time to review those basic formulas and rethink what is taken for granted.

when they started talking about olympic and nobel prize winners my mind blew up, so pretty much when true a.i. is invented it won't just be one person it'll be a huge collection of people, like everyone on the planet today and every generation that came before, without them it wouldn't have been possible ... that's nuts

If universe exist something must exist outside universe

The sad thing about cold and impassioned machines are already being made, square slim boxes with an apple on the cover, making the human species asocial and delusional ripping the fabric of human interaction apart and leaving us empty and hooked. Hope for some kind of (reversible) engineering for the benefit of all life...

But they rather build weapons and disease to kill us all instead creating technology to save us from deep space threats, OR even send you humanity into space to explore other worlds

It's not bad that people accept the simplest solution first, however; it is bad if they use bad judgement in accepting a simple non-solution as a solution, merely because it is simple.

"we know a lot more about physics and limitations" Unless of course we live in a simulation.

Is it conceivable that humans are in fact some ancient alien civilization's robots (perhaps even biological, yet artificial copies) that were sent to earth to preserve their species? We can heal (repair) ourselves We can reproduce We can explore and expand Just as the robots he suggests we need

As amazing a podcast this may be, demoralizing, soul dampening, I'd even go as far as saying truthfully damning it Is hand in hand. To think and conclude that we humans, will never, as far fetched as it sounds, will never....harness the power of a star, because of causality never learn the secrets of a blackhole, that we're destined to remain a class 0 civilization to amount no more but to eat sleep shit and perish here on earth and imagine what could be. Im sorry call it my imagination running wild but this isn't it.

There are creatures living within our bodies that function in a way of conscious action, but do those microscopic biological entities realize the World outside the Human body!? Or Finding Nemo, does he realize there are layers to the atmosphere that protect us from the elements of outer space!? How would Nemo react to this dimensional education, especially while living his entire life in the grand oceans of this World!? We are still so young in our understanding of what's truly going on in this reality!

People who don't believe in UFOs are like fundamentalist Christians who don't believe in glaciers.

load of garbage

dark matter lolololol this guy is a fool

I love joe and the jre but you have replaced him. Thank you

Such a nice man. Wasn't expecting someone so smart to have such humility and be so considerate.

It is almost as if instead of a nearby repulsive force being responsible, there is a distant force drawing our matter to it. The focus upon the local area is a constraint that is self imposed. If we expand our thoughts upon all things possible to include a far off unknown force which exerts an attraction upon us and our local matter? What could the further possibilities include?

It'll freeze then either morph or infuse with something we will never understand in our current form.

I think entropy is gradual in all things. If the fish that made its first step on the land could have asking himself how can I fly, he wouldn't be able to answer his question. As us humans asking ourselves how can we populate some exo planet, we will learn to fly there too. To break the speed of light at first we don't need math and science at first, we need imagination, crazy imagination because just being full critical isn't productive that much battling with impossible numbers and concepts to grasp. Regarding the brute force way of traveling million of years, I think before robots we could make a human printer and send it to all stars where our DNA will continue to live while we will die out here, just a ship with AI that will land and print adult humans with some knowledge downloaded in their brain, or just create a parasite with our DNA that will make primitive beings develop intelligence and become like us with time, our signature will live forever with our DNA. I just don't like the idea of robots, from engineering point of view they are great TOOLS and thats all, we do not need to play god, we do not need to give feelings to our TOOLS. Even if we create them human like, we will always be afraid of them I see no point of creating more powerful beings than us with the mindset of tribalic apes like we are, we will always be that father that disappoints its children, I am all in AI and robots need to get more complex and more useful but there needs to be a limit between playing humans and playing god. In my opinion mastering biology and creating life from nothing is the most powerful method to propagate our existence in the entire milky way. Maybe we are missing some rare materials on our solar system, maybe we are missing an exotic source of energy, but if we can replicate our life creation and evolution in other places, maybe they will be able to travel freely in universe.

I wish you would let your guests speak more.

Dark energy is the stuff from the event horizon of the ultra massive huge black hole that exploded to create our universe I think is why we can't detect it:)

coming

Alex Filippenko and Brian Greene are two of the easiest, most well-spoken astrophysicists to listen to. Excellent podcast.

I don't believe in humans.

The systems WILL BE ECONOMIC, GREEDY AND AGGRESSIVE, you on-behalf-of-your-viewers NAIVELY GULLIBLE all of a sudden natural sciences minded possibly future investor in AI ? STOP IT.

Bioengineering threat huh was that a dog whistle

Avi Loeb shits on this guy

I came here for Robin Williams 😏

How can two guys be so incredibly smart and at the same time the same two guys think that we are so unique among trillions and trillions and trillions of stars?... we haven't even reach the planet next to us, and barely our own moon, and yet we think we know everything about the universe surrounding us.

Stuffs cool but none of it is or can be proven.

If Aliens are traveling at light speed they are doing it in a way that physics we know about is irrelevant. Meaning they are not having to use massive energy to make a ship move to or beyond light speed.

Haha he said retard

Does anyone here know anything about the andromedans, the pleadians, the other galactic civilizations just outside our atmosphere or even about the reptilian alliance controling us or alex collier? My real question is, the one thats important to me, is if you know who im talking about, if i believe what they say, what will happen if i kill myself, would it change anything?

AHMAZING!!! THANK YOU SO MUCH FOR THIS CONVERSATION!!!

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I loved this guy on Spin City!

At 1:32:00 Lex brings up a great point. There are obvious shady conspiracies that actually happened like MK Ultra, cointelpro, etc and they eventually got found out. The more people that are needed to keep a conspiracy quiet the higher the likelihood of a leak. I see a lot of conspiracies as being nonsense due to the fact that they almost require a great deal of competence and incompetence on the part of the government at the same time for them to make any real sense

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They gonna be pissed when AI starts winning every award every year

This doesnt help us at all atm.

youtube auto played into this and i just want to say i thought i was listening to james franco interviewing someone

He was .my professor:)

Maybe Infinity is just a point of prospective and or understanding .. If you drop an ant in the middle of the ocean . To him or her , that ant would think the ocean is infinite and from his view and prospective , it is . If you could ask a dolphin how much land is in his ocean and is the ocean he swims in is part of a bigger part.. To the dolphin his Universe may be the ocean and land is just an isolated body of mass that moves through his Universe . So now here we are , the human race . Seeing and understanding all that we can see .. Basically seeing things in our own prospective and own understanding , and understanding and knowing our little piece of the term, Infinity. Is our prospective just as limited as the ant , that I first mentioned ...? Infinity only exists for each level of understanding which is only shattered by a greater understanding and perspective .. Only to find in his own perspective , " There's More " ??????