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

Alex Filippenko is an astrophysicist and professor of astronomy at Berkeley. Please support this podcast by checking out our sponsors:
- 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
EPISODE LINKS:
Alex's Website: astro.berkeley.edu/people/ale...
PODCAST INFO:
Podcast website: lexfridman.com/podcast
Apple Podcasts: apple.co/2lwqZIr
Spotify: spoti.fi/2nEwCF8
RSS: lexfridman.com/feed/podcast/
Full episodes playlist: • Lex Fridman Podcast
Clips playlist: • Lex Fridman Podcast Clips
OUTLINE:
0:00 - Introduction
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
CONNECT:
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- LinkedIn: / lexfridman
- Facebook: / lexfridmanpage
- Instagram: / lexfridman
- Medium: / lexfridman
- Support on Patreon: / lexfridman

[@lexfridman]

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

[@chuckdvorak6268]

It's pleasing to see you get the recognition you deserve. You've been crushing it with podcasts... getting phenomenal guests, asking appropriate questions and being intriguing yourself. I value seeing the subscription lit up with new content...thanks for all you do

[@coolstuffin5]

You are a gentleman and a scholar for the timestamps. Thank you sir.

[@SzTz100]

Excellent interview

[@danielhug7405]

All we need is brain uploading tech, organic 3D printing and Von Neumann machines. Upload your brain to the VNM send it to another planet, have it build human bodies and upload brains to bodies.

[@redriver6541]

I saw his face....and immediately clicked.....I've watched enough scientific documentaries and the like, to know who this fine fellow is...... I knew right away I was in for the whole podcast. Thank You so much Lex. I LOVE what you do man. I can't explain how much your work means to me. It gives me hope that there are others put there paying attention and not neglecting what is really going on above our heads..... Thank You Sir!

[@chrisgillespie247]

I had Prof. Filippenko at Cal for ASTC10 for my undergrad in 2010. He's extremely passionate and his teaching style is out of this world amazing. Definitely one of the reasons for me completing my PhD program. He was also my supervisor for a whopping week, and injected me with valuable knowledge for my dissertation. He's a rock star!

[@michaelscott5653]

I grew up on his "the universe" show on Science. Incredible passion for the field. Glad we have him!

[@AntsMovies]

I’m so envious that you got to spend time with him. I’ve watched his Understanding The Universe series via the great courses several times. All 96 episodes of it. It’s fantastic

[@ReedCBowman]

I had the same pleasure (just the undergrad part) in 1993. He was already quite deservedly famous as a lecturer then.

[@TheJP100]

The world needs more profs and teachers like him, for sure!

[@chrisgillespie247]

@TheJP100 Yes, they do indeed.

[@askagain]

Bring Mr. Filippenko back as much as he's available, there's something special aboit this particular cosmologist, outsanding sit down Mr. Lex, keep it up and an enthusiastic Thank You to both.

[@kikopauck8632]

This is the most articulate and polite youtube comment section on the entire platform. I'm glad we all mutually agree that this is great content. I love you guys❤️

[@gledatelj1979]

I am articulate but not polite. Filippenko looked human about 10 years ago when I saw him on video however he is total crazy atheist dreaming deranged dreams about "Universe" which is euphemism for God. What makes him worse is that he is judging and failing students on his false science .

[@BobSell]

Alex is one of the greatest educators of our time. In every lecture he shows you the importance of having a passion for what you do. You’ll love life and have endless energy that’s transmitted in a smile. And maybe, just maybe, you’ll win a Nobel Prize!

[@gledatelj1979]

Filipenko is an insane rambling atheist and statist that contradicts himself every step of the way. Nobel is awarded , not won.

[@joshmcneil1086]

When this man smiles, he looks to me very much like Robin Williams.

[@dapdizzy]

Alex is really kind. I think that broad kindness is one of the things that make him resemble Robin.

[@BlackCheezit]

What I was thinking

[@mavrikforsythe5037]

I’ve always thought he looked like robin Williams

[@conradangel8602]

Definitely!

[@MyCleverHandle]

His eyes are always smiling. Kinda like Jerry Garcia!

[@manyobidnazz]

THE WAY THIS DUDES EYES LIGHT UP WHEN HE TALKS ABOUT THIS.. YOU KNOW HE LOVES THIS TOPIC..

[@ArcticWolf-qd6ev]

@Mo Khan yer maw.

[@tanhtsung961]

I had Alex Filippenko at Cal and he was without question the best professor I've ever had. Every single lecture was absolutely mindblowing and he was always so passionate and enthusiastic about teaching. He's incredibly humble despite being a leader in the field and is just the nicest guy. He used to bring in donuts for everyone in our seminar class and we would all discuss profound astronomy and physics concepts. Those days were glorious...

[@tuxedomaskkenny925]

@Mo Khan deez nutz

[@MrGOTAMA420]

@@tanhtsung961 hes an awesome prof.

[@olgakuzmina6503]

I love how Alex is always smiling when he's talking about his fields of expertise. Wish I loved my job like him lol

[@BartChapman]

Best professor I had at Berkeley! His instruction led to a life-long interest and understanding of the nature and mechanics of the universe.

[@Beya045]

One the most underrated episodes. It’s also a must watch. Alex displays unparalleled passion (via facial expression).

[@dontharttheman]

I had the absolute pleasure to listen to this man speak in person while taking his Intro to Astronomy Course at Berkeley. My favorite moment was during Halloween, where he dressed up as a black hole and threw out candy during the lecture to mimic Hawking Radiation

[@jw7298]

Yessssss! We just had the Halloween lecture.

[@danisob3633]

lmao :D

[@jayanthkaruturi9640]

omg we just had that lecture! Loved it!

[@farmerlarbear2244]

Ever wondered how to figure out if someone went to Berkeley? Don’t worry they’ll tell ya… At each and every possible moment…They...WILL…TELL…YOU.🙄

[@resistyranny_0992]

I need details on this costume so I can replicate.. was he in black spandex outfit lol?

[@djhaz-m.a.t.2168]

Alex Filippenko is an amazing academic communicator that really dumbs it down without making you sound dumb when you butcher what he said later! On a serious note, he is an amazing, inspiring human being that excels at being a scientist. Thank you for having him on the show Lex!

[@braideasegoat8284]

Who's "you"? You? Or me? Or them? Us? Everyone but him? Jw

[@dreyn7780]

11 months later none of this makes any sense. Smart tv's don't show comments. That's your 1st problem. 11 months later, its just me here and there's nobody else coming here. Even you've disowned your own comments. You're insane. This isn't culture and its not communication.

[@lachlanmacinnis6336]

@@dreyn7780 k

[@premkumar9608]

Alex is the best orator in astrophysics. Especially in supernova. Thanks Alex

[@ac-gp3kz]

I'm a year late to this but this has to be one of my fave Lex podcasts. Alex is so engaging and has a knack of explaining abstract concepts to the average Joe like myself. Absolutely loved this one ❤️

[@DKxRAMONESxSP]

Alex was my favorite presenter of the old 2000s space shows. He always seemed to have genuine enthusiasm about the secrets of the universe

[@Puleczech]

Exactly, I know him from this KZbin neanderthal age of documentaries. Great passion for the subject, amazing guy!

[@baraka99]

I've been fascinated by Alex Filippenko ever since I've seen you on the series "The Universe".

[@sevnsyn]

Alex is one of my favorites when searching for a space documentary to watch. Lex BIG Thank you for bringing the many great conversations to all of us.

[@hunterallen1316]

Miiii

[@00tonytone]

This lex is a upgraded version of an artificial intelligence robot. And there only gonna get better. His podcast with Elon musk was classic. 2 robots trying to convince the audience that there not robots. Classic shit.

[@stevediben7900]

I literally just rewatched Nat Geo's special called "Inside the Milky Way" where Alex was featured. Highly recommended. Alex's enthusiasm is contagious.

[@stevediben7900]

​@@thatbadhuh kzbin.info/www/bejne/fIrEnYhvfq2WY6s ;-)

[@fanstream]

completely agree!

[@truthsocialmedia]

Thats a fantastic documentary. I’ve listened / watched it over a dozen times

[@dapdizzy]

Right! I knew Alex from those videos as well. He is an even deeper and kinder person. Between the words you can feel his kindness field that fills their entire conversation.

[@JimsyTFT]

I can't believe, you have brought Alex Filippenko, my first ever online professor, back into my life. Wow! It feels like 3 lifetimes ago, I was 16 looking for online Astronomy classes and came across his series. Absolutely fascinating guy, a kid at heart.

[@milztempelrowski9281]

Just what i was about to say. I've seen that face ages ago. Lex really knows how to put shiny pearls on a string.

[@toLothair2]

I have seen his whole year 2000 astronomy classes, over 40, 50 min lectures. It was every mon,weds,fri and I couldn't wait for that 320x240 7 fps RealVideo over 56 kbit dialup. I still have then saved. A 50 min file was about 15 MB. Some even 7 MB.

[@david-joeklotz9558]

As a physics major, two of my favorites are Feynman and Dyson. I recommend watching the lectures by Feynman and interviews given by Dyson. I thoroughly enjoyed this interview with Filippenko. Thanks to Lex Fridman, who has a unique style that allows the guest to speak and maintains interest for the viewers and podcast listeners throughout

[@alfredolarsi5600]

I am convinced that Mr Filippenko has reached enlightenment and he's a Bodhisattva. Thank you for staying with us!

[@BillyTheKidOfficialYT]

If this isn’t satire please seek help

[@d1agram4]

Alex is one of those rare scientists who isn’t full of himself. He’s willing to listen.

[@ImActuallyGarbo]

he is soo excited lol

[@leonardsercombe6668]

They're all full of shit have no proof of the bullocks they talk about mainstream academia biggest liars on Earth NASA is full of them James oberg the biggest dick head walking the planet also the biggest liar

[@dannydemonic4799]

Leonard Sercombe You can’t even form a proper sentence and you’re making fun of PhDs that better our planet.

[@jtzoltan]

@@leonardsercombe6668 you might know somethings here that I don't... Do you have expertise in these fields or insider knowledge or anything like that?

[@stickybiscuits7946]

@@leonardsercombe6668 i legitimately have pity for you and your close friends/family for having to deal with sentences like this.

[@jofretorres7716]

i love how happy this guy looks talking about science, kinda reminds me of Feynman

[@jw7298]

He’s my professor and he’s amazing

[@jofretorres7716]

@@jw7298 u lucky bastard

[@jw7298]

@@jofretorres7716 lmaooooo

[@shimsmartialarts4099]

Perfect im just about to start making a pie!

[@markfrost2307]

I recently found this podcast and i am loving every single episode of it that i have listened to so far (10+), absolutely astonishing discussions and talks! Bravo!

[@bailahie4235]

How wonderful that Filippenko is one of the top scorers in views among the Lex Fridman podcasts. I followed his original online lectures on astronomy/cosmology I think about 15 years ago I believe on KZbin or some other online source. They were wonderful and so superclear, super well-prepared and meeting very high didactic standards. I was glad that Alex invited him for his podcast.

[@user-oz3qw1sx2y]

I remember watching this guy on a show called The Universe on the History channel and always loving his enthusiasm and I always wondered what happened to him.

[@ianzeta8839]

I am having a great nostalgia here. Fun fact, I was the only one watching The Universe series in my school. So, I decided to pay other students to watch the series and the next day I would make them questions about black holes and multi-universes to give them their lunch wage. :)

[@mavrikforsythe5037]

@@ianzeta8839 lol that’s funny I would love to get paid to watch the universe

[@mermiez1]

Found your podcast about a month ago. You have become my favorite interviewer in these few weeks, and one of my favorite shows to listen to. I have learned a lot from your guests. High school drop out here, who can never satisfy his curiousity. Glad I found you, along with many other platforms, where I can listen to the most brilliant minds of our time. I always think, I should have finished school, but I could never afford it, and I never believed in loans beyond my immediate means. So now I'm just a small time farmer who listens to literal rocket scientists. Thanks again for helping make that possible, brother.

[@mardyross5148]

Thanks for what you do to be in service to others. Super important! For what it's worth, I competed to get into a very challenging program at University, midlife, endured the upheaval of the mainstream medical.system for a dozen years and went off into a field very difficult for me (Internet based provision), and today support myself and home by being without credentials of any kind, assisting in homes with tasks they can't , for less than half what Is make in my former role. It's more holistic, I'm not restricted in what I can lead people to learn about along the way. I was saddled in debt from school and medical problems that occurred from my genetics not doing well with required shots, and I could have retired by now as I had a good job working for researchers before I had a degree. Now I jokingly say to clients I am like a friend, you just have to pay to talk to me or get my help.

[@deniselinda5355]

@@mardyross5148 hello . As a person that has home help to do the things I can't I appreciate your journey & having net some wonderful people (the caregivers/home helpers) they & you are special people & the World needs more like you.. thanks for being Awesome & Rocking It!!

[@amyantin1]

How joyful and human and clear this conversation was and still is. And the Carl Sagan quote at the end made my day.

[@saulespino2510]

True joy is knowing God and accepting hjs grace and mercy .The universe didn't create itself. This guys think nothing created everything when they know that is a scientific impossibility. The heavens declare there is a Creator and that is the God of the Bible. The greatest story ever told is the Gospel of Jesus Christ.

[@paulmr6667]

Alex made The Universe documentary episodes a joy to watch. Oh man I wish they would continue The Universe documentary, too sad they stopped.

[@gledatelj1979]

How much is there to tell ? I mean the subject is very limited to non existent to experience.

[@sundarchip]

Me too.

[@gudafternoon420]

This is in my top 3 podcasts I've ever heard, my mind was blown every 2 minutes, keep killing it Lex! Big love from Australia x

[@xboxonexchannal3713]

What's the other 2 podcasts top on your list.

[@bailey31909]

Lex, you have the most interesting guests and I learn so much. Thank you.

[@hayden990]

@@prophetshepherdbushir5054 fallen on deaf ears

[@taintedsasquatch398]

Agree

[@Bill-ou7zp]

10x better than Rogan

[@MegaM249saw]

Garbage lies ODD TV

[@nadinerelihan807]

I hope to meet Mr. Filippenko one day and chat about black holes, even if it is just for a few minutes. He’s the reason I am so interested in the universe.

[@FZMStudio]

One of the greatest educators period. Alex Is a rare gem. This conversation was outstanding.

[@TheBenmesli]

I have attempted to meditate many times in my life and prior to this CD the only success I've experienced is with live guided meditation. kzbin.infoUgkxzpa8CIfZcihW4Z0F_ja0QF3W9KIatrsq This is the first CD I've used that cuts through my unmedicated ADHD and enables me to truly relax and experience a quiet and energizing interval. The instructors voice is very soothing and pleasant to listen to. I am easily able to sit successfully through the entire CD, and for quite some time after. I cannot adequately express how tremendously helpful this CD has been on my spiritual journey!! Two thumbs up and 10 stars!

[@thomasbrawley5045]

Just took Alex's midterm today! He's a great professor and has a contagious curiosity for the universe. Awesome to see him speak with Lex

[@JakeGallen]

Any title Lex posts with "Aliens & Universe" count me in!

[@ronaldportillo448]

Yup!

[@normalbutyl]

Gat damn right

[@dndsmith1ify]

Any title Lex posts...

[@gracewalker4902]

The question is: are we special "special" or eating paste kind of "special".

[@MarsLonsen]

@@gracewalker4902 why you copy comments?

[@willk7184]

Alex is one of my fave scientists to catch on astronomy shows. Much appreciate his knowledge, enthusiasm, and ability to articulate ideas in accessible terms to a general audience. Fantastic interview - thanks Alex & Lex for this one.

[@zarikkohli4643]

This is one of my favorite episodes. Please have Alex back!

[@TheMechanic204]

I don’t know this man, but do remember his enthusiasm on various documentaries I’ve watched. Excited!

[@marcusandmat441]

I love how Alex is always smiling when he's talking about his fields of expertise. Wish I loved my job like him lol

[@ahtheuncertainty2125]

My favorite podcast has met my favorite professor. It feels like Christmas.

[@DanielVazquez]

Go bears!

[@delcivic04]

Mehhhhhhhhhhhh 🐑

[@JesusMartinez-uk4ik]

@@DanielVazquez Daaaaaaaa Bears

[@blakemiller2129]

Great talk. I want to win an award in Physics one day. I found this discussion to be very exciting and informative. I love Alex's attitude and he deserved a part of the Nobel prize, but as long as he knows we know, I hope he finds great peace in that. Thank you both for you time.

[@michaelvandensteen7994]

This is one of my favourite interviews of you!! What an interesting guest (smart and enjoyable to listen to because of the enthusiasm) and your questions and answers are so smooth and add value. Thanks for the amazing content Lex!!!

[@aidencrooks]

In all honesty, Lex's fascination with aliens is my favorite part of this podcast.

[@quyiter]

It's hard not to be once you've talked to a decorated Naval Aviator that has seen these things up close.

[@benjaminburns4412]

@@quyiter he saw a ufo not a alien

[@vinsondong879]

"I'm not sure I'm yet ready to deal emotionally with expanding space." That's going on a t-shirt "I know which end of the telescope to look through." Also going on a t-shirt.

[@quyiter]

@@benjaminburns4412 the implication being that it was an alien ufo

[@createaccount937]

We know nothing about the start of the universe and people need to stop listening to bullshit! We don't even know what in 90 % of the sea ,

[@jordanthedivine]

haven’t seen this guy since i watch the science channel in like 2008😂 i’m an adult now and it’s crazy that dude hasn’t changed at all

[@michaelbenjamin9045]

Hes been on joe rogans podcast I think 2 times

[@EmpireRamzes]

same he's aging in reverse

[@troyotapreuis6020]

Haha I was just thinking that

[@ahcapella]

I was thinking the same thing! I guess that when you love what you do (as he _clearly_ does), it keeps you young!

[@tylernestor2431]

Alex Filippenko is a human example of how a persons energy can influence another's ability to learn. If everyone enjoyed anything as much as Alex enjoys talking about his expertise, we would have a better world. Thank you Lex, and thank you Alex.

[@coalkey8019]

Alex Filippenko is an amazing guy with a great outlook on life! So smart, too! The perfect interview by my favorite podcaster. For me, the meaning of life is to preserve that greatest story ever told (and which is still being written). We are the storytellers. Great stuff, Lex!

[@victormainguitar]

Genuine excitement is contagious. So are all those smiles. Thank you for recharging my batteries!!

[@maxjovel6176]

Yeah fzyyiiy

[@SouthernOregonOrgani]

The way this man honors and celebrates existence is nothing short of beautiful

[@christiangallagher8856]

Alex's was by far the best class I ever took at Cal.

[@KillerIceStorm]

Oh my goodness this was so good, such a steady stream of dopamine for 2.5hrs. Thank you, Lex and Alex.

[@JakeAyers]

I met Alex back in 2010 when he visited the observatory at Primland Resort, he was one of the most polite individuals I’ve ever interacted with.

[@yoseidman4166]

Thank you Professor Filippenko. Inspiring that you got to be so good at explaining to others by: 1. not being afraid to ask questions as a student yourself and 2. continuously pushing yourself to teach introductory students and the general public. By making the effort to teach beginners, you as a teacher sharpen your own understanding at the same time. It struck me that is the same dynamic of the Universe. The outward process of creation requires the "extra exertion" of exploding stars to give birth to sentient life forms. The Universe can then "better understand itself" through the questioning of that sentient life looking back at Itself.

[@snackentity5709]

it's good seeing alex spreak more like a scientist-among-peers rather than the more typical role of scientist-among-laypublic

[@guyfromthe80s92]

Yeah, I hate how most documentaries explain the same thing over and over again with the same analogies.

[@WildVke]

I have always liked watching the (TV) shows I have seen @Alex Filippenko, he is such an amazing human. Alex is always smiling. It's such a pleasure to hear him speak of space with such great enthusiasm, I wish all teachers of the cosmos could be just like him, almost like a child with his favorite toy. Thank you @Lex Fridman for bringing to the forefront these amazing people that most of us would never have had the pleasure to see or know their thoughts. As always Lex, thank you

[@CortexZero]

These are the types of subjects and conversations I want on my Podcast.

[@ethercept]

You're killing my OCD of watching episodes in order. This man's astronomy course and his passion changed my life (& made me seek out a total solar eclipse!) ... Haven't watched yet but I know it will be spectacular! ... Everyone check out his Astronomy intro course.. cheers!

[@isak9568]

Same. Went to Turkey in 2006 for a total eclipse!

[@brandonunglaub]

My family watched in awe as a flying saucer flew beside our car only 50 feet away in California around 25 years ago and even after all this time it still feels so mysterious and magical to me. The way you feel about people not being interested in this phenomena and finding it depressing how everyone dismisses these experiences so fast is how I've felt my whole life. I stopped telling people about it only a few years after as a kid because no one even remotely believed us and when I told them excitedly about this experience, I could see their eyes glaze over every time then change the subject. Its refreshing to see your passion about it and the same yearning for people to wake up a little and be curious.

[@tanakeilidh384]

I believe you! 👍💕

[@brandonunglaub]

@@tanakeilidh384 ah thanks 🙌

[@slingeroftruth]

Just by making that comment and looking at your picture and actually looking normal, not crazy has made me lean a few points into a likely probability that there stories are true. It's is really the scammers with blurry photos or attention seeking strange acting people that kill serious leanings in believing. The fact you didn't give this elaborated story, just a simple statement, makes me lean a little more into some of these events may be true, especially after Lex interviewed that pilot. It makes sense that more people on the west coast see these things considering how any life from the stars would likely live or base in the most remote areas in the planet in the pacific ocean. Places where there are still areas no human has ever crossed for hundreds of miles. That is where I would look after investigating the most less traveled areas. Only God, if he's real, knows what other amazing things we would find in the deep.

[@brandonunglaub]

@@stefanms8803 yeah I definitely get that! Still frustrating though.

[@brandonunglaub]

@@slingeroftruth Yes!! Thanks 👏 I agree it's hard when there ARE a lot of crazies out there, so when there is a true sighting it's easy to get grouped with them. I've found a lot of people who have listened to our story automatically assume we are exaggerating it's distance to us or size, so I'm currently trying to animate the experience in blender. Should be done pretty soon, hoping I can just link my friends to it when I tell the story.

[@BryanSwifty]

I was so excited to stumble on this episode. I don't know how I missed this one, but I'm so glad I found it. Thank you gentlemen!

[@91junglecat52]

Wow, he is just so so passionate and a great communicator. Thank you so much, your conversations are so sincere and well meaning. Your platform is going to be successful....it is so good for everyone.

[@cam1696]

Every time I hear conversations like this, it makes me wish that I might live forever to "see" where these predictions go.

[@chucknades117]

U won't but I might

[@salvitiello2738]

Let me tell You : you are crazy ! You want to live forever to see how humans ending ? I bet won't be so fun like you think !

[@salvitiello2738]

@Pro Gamer Very unhappy life ... So f%%. off !!

[@HBC423]

You are the universe, we'll be here until the end

[@HBC423]

You are the universe, we'll be here until the end

[@MikeKinney8675]

Lex, that conversation with Alex, was F-ing great. I am so glad I got to see , and hear it. Awesome

[@mrcyan8686]

what a beautiful human/character/person Alex is. thank you lex for this dialog

[@mpaforoufakis]

This is the best interview of this channel so far.. Alex Filipenko is the most underrated super intelligent down to earth scientist. Thank you Lex for hosting him.. it was a pleasure listening to both of you!

[@brucemillar3015]

"The brain is an organ by which nature examines itself." - George Bernard Shaw

[@plebeianmedia1080]

-every pothead ever

[@davidluck1678]

GB Shaw is also the guy who thought that "Herman Goetz is the greatest composer since Beethovan".

[@agrojester1156]

The guest is pretty good on this one.

[@mikeythebox]

... then I am the instrument by which nature strives to understand itself...

[@1974greymalkin]

That's a fucking concept.

[@carlalakins]

Lex, you are one of my "go to" interviewers ... on my very SHORT list of interviewers I enjoy listening to, and learning from. Thank you.

[@user-fp6ed8ip2j]

Please get this guy on again his energy is contagious. I love this man. His enthusiasm is infectious..

[@olympicgardencrafts]

16:15 imagine the shock of realizing all at once you're on a ball spinning through space. Something we take for granted now but it must've flipped Galileo's lid pretty good at the time.

[@howlinhopkins4075]

imagine thinking you're an intellect because you watched a KZbin video

[@ambertimestwo2358]

Imagine being a nicer person while you're on this ball spinning thru space, and all possibly while you were intellectually reminded, by a KZbin video. 🙂

[@ambertimestwo2358]

@ regenerative technology, I agree with your comment

[@doylet9753]

Its flat!!

[@doylet9753]

So tired of the flatearthers!!

[@g00glian0]

Alex is so awesome! He really knows his stuff, and more importantly, seems like a great guy.

[@MegaM249saw]

He knows nothing but lies

[@MaryAnnNytowl]

I'd say it was as important, not more important.

[@MaryAnnNytowl]

@@MegaM249saw got any ... erm, you know, evidence for your claim? Or are you just flapping your yap to be flapping it?

[@g00glian0]

I made a comment, my opinion. If you do not care for it, simply go away.

[@MegaM249saw]

@@MaryAnnNytowl well I like Alex not sure why that comment is there Im thinking it was referring to biden sorry for the misunderstanding

[@suzettecolombo4179]

Just in the past week or so I have just discovered this gentleman and I am so very grateful! Exceptional and wonderful! Thank you Mr Lex Fridman!!! ❤️💙💜

[@RCenkush]

What an incredible place we have come to as humans to have someone as intelligent as Alex freely give this information out to all via the internet. Thank you Alex for this gift, and Thank you Lex for the show and sharing it with us.

[@jartv2390]

I’ve been in love with physics/astronomy since I was 7-10, I still remember sneaking out of my room to go to the living room to watch Alex and friends on nat geos “the universe” this was such a treat

[@user-uq5qw1fk3d]

Alex Filippenko is so awesome! His TTC lectures (in addition to Sagan's Cosmos) are some of the sources that inspired me to study astrophysics many years ago, and have had a profound influence on my understanding (and open-minded-ness to new ideas) of the cosmos. Alex, if you're reading this and have time, please start creating KZbin content! Your enthusiasm is contagious and you'll also inspire others to study astrophysics & cosmology. edit: Just finished watching it. Such a thought-provoking conversation!

[@d-at-sea1322]

It's early in the morning and again I wake from a dream I can't bare to live thru, I pour a drink I can't stand to drink but my body refuses to let me avoid because of the withdrawal awaiting me and podcasts like this is the only thing that let's me slip back into those little slices of death peacefully... thank you lex

[@josemarquez6711]

Amazing gentleman! Leads with his heart and soul.

[@2silkworm]

Lex, please invite Sabine Hossenfelder, she is amazing! Thank you for your great podcast! Please upvote for Lex to see!

[@Svo-oj5xx]

Great idea!

[@Svo-oj5xx]

She appears to be so incredibly sober and comical! That's a breath of fresh air.

[@alexandergedeon409]

Weasels ripped my flesh!

[@2silkworm]

@@alexandergedeon409 yup :) Great album!

[@TheFlashBarry]

Alex is my favorite person on the How the Universe works. He needs his own show like cosmos.

[@emperorgizmo3014]

@Enough is Enough exactly. This religitard is trolling.

[@fullsendcirca9255]

Nah

[@LimitedCapacity]

I love this guy lol I’ve listened to him many times and I don’t get bored of him.

[@ronaldzickendrath2376]

One of my fav podcasts ever ive fell asleep to this a hundred times and counting 🙏

[@NK-er3ci]

Yeh me too! Great for sleeping

[@janelwilliams9144]

I've been using Lex's podcasts to sleep too!! Thought it was just me lol it totally helps my insomnia and anxiety, and I'm getting smarter in the process 😂😴🌛🥱

[@danielanjegovan3865]

It warms my heart that he's not only super clever but also an absolutely lovely fellow. Thanks for this!

[@mikee6805]

I literally feel as if im being injected with knowledge and intelligence each second i spend with Lex.

[@mrz3r012]

This is said a lot in the comments but I love Alex's excitement and general enthusiasm.

[@richardavery2894]

I LOVE ALEX! I've been a huge fan of him for so long. He was the one person that got me into these subjects. Thank you for interviewing him. He is so inspiring ❤

[@evertronic]

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

[@kenadams5504]

I thought brian greene was a theoretical physicist.

[@shubhamkesharwani]

This was one of the most beautiful conversations I heard of. He said so many things which give you a positive feel about how to lead your life. Dr. Alex's wonder on the magnificence of the world is just absolutely contagious. Thank you Lex for this.

[@salvitiello2738]

😳 You people are all crazy ! Wtf is positive about a super Vulcan , a virus , an asteroid collision, or sun blow up and wheatear change ? Let me know bro ...

[@salvitiello2738]

Almost forget : nuclear weapons, and auto destruction

[@anthonyalexandrou809]

Me to lex , this conversation does make me feel lucky to be alive.. It's tough to tell loved ones especially about this sort of gratitude... alot of people don't want to hear it. What a wonderfully delicate & dangerous universe .. This chat squashs my ego flat 😐😊 Thanx guys,, dis one of my faiv chats

[@Shagula420]

One of my favorite interviews of yours Lex. You’re both such beautiful humans. The Human race is lucky to have you guys. I hope you bring Alex back again, not sure what else you could talk about, but you always surprise me with you’re questions and introspection. Thank you.

[@vincentmaldon7707]

I could listen to him all day. Thanks for having him on.

[@plan9203]

I always remember this guy for his smile when talking about the universe. Always uplifting to listing to him talk.

[@dapdizzy]

I didn’t realize how important and different it is until almost recently. You’re absolutely right.

[@B3nkeii]

thank you Lex and Mr Filippenko from the bottom of my heart

[@yanbibiya]

Alex, is a good friend and such a wonderful person. I love listening to him, and bouncing my own thoughts around for him to mop up.

[@mikerosy6924]

He’s like a kid that was never told no growing up, to create his eccentric enthusiasm

[@BlackCheezit]

Wouldn't say that kids who were never told no become world renowned astro physicists lol

[@stickybiscuits7946]

@@BlackCheezit he never said that at all ha what are you talking about

[@CosmoJoe101]

@@BlackCheezit Think the commenter meant he is like a kid that was told to not grow up, and stay a kid forever... because of his excitement and enthusiasm.

[@johnny10grasp3]

@@CosmoJoe101 I think Mike meant... a kid who was never told "grow up" or "no, grow up". Maybe he sleeps with planets style pillow covers.

[@honeybunny2245]

I love this rare occasion that child like wonderment persists throughout life long learning experiences

[@user-sn7yj7me4q]

This is the best interview that I have seen in a while. I work in a college and have shared it with many of my colleagues.

[@lukedodson3441]

Please get this guy on again his energy is contagious

[@edmundkempersdartboard173]

I love this man. His enthusiasm is infectious.

[@Voidroamer]

i love this guy's permanent smile. watch anything i see with his face on it lol

[@leepascoe2585]

I loved him in the show "the universe" he always loved explaining the topics with a massive smile on his face. My favourite presenter/host by a long shot

[@keeganretzlaff6582]

This interview is absolutely fascinating.

[@issyjas3309]

Brilliant interview, Lex really brings the best out of his guests and Alex has a profound ability to make complex ideas very simple. Probably my favourite interview after the Lee Cronin one, Sara Walker coming a very close third.

[@mmac8379]

He is so rad! I wish I could smile constantly. Love his energy.

[@asazinator]

Perfect im just about to start making a pie!

[@sarakaster]

Great because pi is round!

[@ichi_go]

C'mon bruh!! You know it's pie season daddy 🥧

[@tylerlivingood662]

I'm baked just like a pie! 🤯

[@ArcticWolf-qd6ev]

🤣

[@freedomshapes]

I have the sudden urge to make a pie

[@marshabeatty6589]

Don’t get me wrong, I appreciate that you are both intelligent, interesting, likable people, very much. I love the podcasts, I binge on them and learn so much. Love you Lex!

[@petarm3789]

Zbog cega bi te pogresno shvatili ?

[@badcornflakes6374]

Don't get me right

[@CricketsMa]

Wow! Just wow! I can't even express how much I enjoyed this. Thank you!!