Time Travel For Real This Time with Brian Greene & Neil deGrasse Tyson

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What type of time travel is used in A Christmas Carol? Neil deGrasse Tyson and comic co-host Chuck Nice answer fan questions on time travel, paradoxes, and wormholes with theoretical physicist, Brian Greene. Did Ebenezer Scrooge get pulled through a wormhole?
How did people think about time travel before Einstein? How did the special theory of relativity change how we think about time? Discover time dilation and how speed and gravity affects an object’s passage of time. What type of time travel was Charles Dickens using?
Learn about the possible paradoxes of traveling and meddling with the past. Is there one immutable timeline or many timelines in a multiverse? Do we have free will? What is time to a photon traveling at the speed of light? How would we police time travel if it were possible? Will we even have time travel in the future? If time travel gets invented, why are we not overrun by tourists from the future?
Which films depict time travel best? How are cells affected by time travel? We explore the movement of information in and out of black holes, string theory, and tachyons. Could we theoretically time travel to before the big bang? Finally, is there even a realm to travel to before the Big Bang?
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Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
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Timestamps:
00:00 - Introduction
02:50 - “A Christmas Carol:” Time Travel before Relativity
05:40 - Time Dialation & Special Relativity
11:20 - Interacting with the Past & Changing the Timeline
17:15 - Tachyons, Destiny, & Immutable Timelines
20:30 - Time at the Speed of Light
22:45 - Hawking Time Travel Conjecture
24:40 - Best Time Travel Movies
30:00 - Information & What Time Travel Would Look Like
38:37 - Paradoxes & Parallel Universes
42:45 - Moving Through Spacetime
46:14 - What’s a Tachyon?
49:10 - Time Before the Big Bang
51:24 - What Type of Time Travel in “A Christmas Carol”

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17 май 2024

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Комментарии : 1,8 тыс.

@Patrick-ud3vu 7 месяцев назад

Who else gets high and watch Star Talk?

@bigdeal1163 Месяц назад

I literally just toked a whole blunt

@Subfightr Месяц назад

Why? Wouldn't it just cloud your mind? Anyone I've been around (my entire family) seems to think they are saying and hearing mind blowing things, but it seems to just open them up the experiencing epiphanies through nonsense

@arthurb6200 Месяц назад

Neil Degrasse Tyson

@estebandevile2706 Месяц назад

Why I like this before I like it. I didnt push the like botón. Is this bikini bottom or W is a me mies no se dice mixe o ya. I love the B of your ideas. You whitey wait it guey. Blackys is bet er Black Kiss no. Never Just Kiss Block that Black. And Black list the wise man. That isnt something. You re sure right. May be anything as everrynhing sure. I luppi that style from a blamaste.

@nmeden3104 Месяц назад

i just toked 4 joints and between tysons asperges and lord nices adderral ive found a gem of love and wholesomeness through shared wonder and passion

@1734245 Год назад

Without Einstein's input, many years ago I realized that 5 minutes of time when I was at work was way slower compared to the 5 minutes immediately after I pressed the snooze button.

@ddudley26 Год назад

Chuck's IKEA joke was 🔥 🔥 🔥 🔥. Dude brought so much comedy & laughs to this episode as well as the show that is immeasurable.

@h7opolo Год назад

h yeah, great moment indeed 42:31

@psk177 7 месяцев назад

Absolutely! lol

@macysondheim Месяц назад

No. He interrupts, & doesn’t add anything useful to the discussion. It’s disrespectful to Professor Green having someone of chucks caliber on the show.

@ashokkumar-zw8vi Месяц назад

@@macysondheimand also i noticed you in a lot of comments lol. Stop going on a hate comment spree bro. Its not healthy. I understand you dont like his presence but come on dude,you are better than this. You have better things to do in your life. Going on a hate comment spree? Seriously?

@ansfridaeyowulfsdottir8095 25 дней назад

@@macysondheim I agree, I can do without the atrocious Dad Jokes if there's more science. This show doesn't need a so-called comedian to make it "accessible". {:o:O:}

@bernieflanders8822 Год назад

For any of you who haven’t read any of prof Greene’s books you are missing out guys. “The elegant universe” and “the fabric of the cosmos” are my favourites. Very deep yet not too hard to conceptualise. Try the audiobook versions if you enjoy listening to prof Greene’s calming yet attention demanding demeanour. Fabulous books.

@alexandrugheorghe5610 5 месяцев назад

His World Science Festival is pretty awesome too

@deepakdongre7712 4 месяца назад

Thank you for sharing this.

@bernieflanders8822 4 месяца назад

@@alexandrugheorghe5610 yeah I like watching those and of course anything at the RI.

@alexandrugheorghe5610 4 месяца назад

@@bernieflanders8822 RI is pretty awesome too.

@ThorPalsson Год назад

Brian will forever be one of my cherished science communicators. If I live to be 99, I will still remember his name.

@vipgames Год назад

Same here

@lovearmin123456789 Год назад

so if you live to 100 you will forget him ? :O

@jacobaccurso Год назад

Chuck, you bring SO much to this gig, dude. 🎉👏

@Gerard1971 Год назад

This episode is one of the best showcases for why Chuck is by far the best StarTalk co-host.

@jacobaccurso Год назад

@@Gerard1971 Totally agree!

@fullmatthew Год назад

Agreed, Chuck is the GOAT.

@NEONARDODiCAPRiO Год назад

Chuck's a good boy

@PeterGenovese Год назад

I keep trying to watch this channel but get annoyed when Chuck cracks jokes. Just doesn't work for me but glad it does for you guys! Enjoy!

@barbaralachance5836 Год назад

We need Brian every 3rd episode ❤️😁 the guy is so great!

@deepakdongre7712 4 месяца назад

One of the sweetest gentlemen on the planet- Neil and Chuck. The enthusiasm that Neil brings alongwith tonnes of astro-knowledge and the attentiveness that Chuck throws in- if there was a perfect world, these two would be the ideal teacher-student combo. Love them ❤

@dingaia Год назад

love greene he's such an enthusiastic and interesting educator

@higheastdeno7584 Год назад

Hahha. Filthy with Physicist.hahaha🤣🤣🤣

@belindaeastmond2117 Год назад

I have never laughed so much, nor learned so much, in a StarTalk episode. Bring back Brian Greene often! 🎯♥

@itsmetodd Год назад

One of the best episodes! Brian Greene is the man! 🔥🔥

@JJs_playground Год назад

Brian Greene is one of my favourite science communicators. He just has this ability to explain complex concepts in a way almost anybody can understand.

@alexanderabrashev1366 Год назад

He's not just a science communicator. He's a leading theoretical physicist, a brilliant scientist, unlike NDT

@mikotagayuna8494 Год назад

"Stop being so damn interesting" is the best compliment you'll ever get from someone like Neil.

@KingGezindaba 3 месяца назад

I’m a pharmacist with a bachelor of commerce degree in financial accounting and next year I’m going to be registering and studying Electrical Engineering because Dr Neil got me back into living Physics again and I had always wanted to be an engineer.

@mytzusky Год назад

Chuck still asked the biggest question here, one about the cells. Amazing.

@hamidgholami6622 Год назад

One of the best episode on star talk Neil and chuck are so synchronized and Brian Green is just a amazing scientist

@h7opolo Год назад

no cap

@user-vu2zh8pv2r Год назад

when the atomic clock was strapped on the pam am plane... does the movement of wires affect the distance an electric pulse has to travel that measure's time? so if the wire is moving at 600mph, that electric pulse will be in that wire a billienth of a second longer than it would relative to the surface of earth... if that pulse is what measures elapsed time, wouldn't the measurement taken then be challengeable?

@user-vu2zh8pv2r Год назад

in the movie contact (based on a book by Carl Sagan)... when the pod is dropped and takes Ellie away at the speed of light, why did only a millisecond pass on earth? for the 90 minutes she was gone, shouldn't about 12 years have passed on earth? not just a millisecond?

@RickEvans-zr5uc 6 месяцев назад

Always more than one solution to these styles of equations

@andes805 Год назад

Brian Green and Neil what a combination, I have been watching both for so long and glad they are in the world. Real science, real people refreshing.

@olympiakos7Peiraias Год назад

The dream team!

@mrlonely5835 Год назад

Das Traumteam

@eddieshoffner1531 Год назад

5. Min. Of laughter Wasted five min

@eddieshoffner1531 Год назад

I tried to listen My concentration was interrupted by Laughing . I would try to refocus but it was very difficult due to laughter about some invisible thought that I could not grasp. Please do this one over without all of the eruption’s from laughter and silly talk I really am interested. I will not give it negative. Due to the topic.

@HinduBoy Год назад

Square Symposium

@D3vin_lun54rd Год назад

IKR!!!!

@fantasyflare Год назад

This is a fantastic discussion. Thanks guys

@LitCrease Год назад

I learn so much from these discussions. I love how Chuck interjects with comedic relief when the concepts are getting too mind melting!

@mauricep6924 Год назад

After 40 years of being on this planet I was so excited to finally understand this that I texted my Mom and told her about the atomic clock experiment. Her response was "Aww that's nice honey".

@macysondheim Месяц назад

I’m surprised she even responded. I would have just blocked you.

@Name.......... Месяц назад

@@macysondheim thats harsh bro

@josephinejohnson2799 Год назад

Wow a brilliant episode! I love how Neil is so happy and cheery all the time ❤️

@cubanrafy Год назад

Neil is always happy and excited to talk about science and its infinite possibilities!

@xxr0ni4xx 11 месяцев назад

It's called 'duper's delight'.

@macysondheim Месяц назад

I don’t. It p1$$€$ me off tbh.

@michaelmangan7963 Год назад

Adding my vote for Chuck Nice as co-host on all episodes! He’s needed!

@macysondheim Месяц назад

Then you can count on my vote to boot Chuck off the show.

@genshinunleashed8455 Год назад

My two favorite physicists... I love listening to Brian every night before bed. Always a mind blowing conversation between you too. I would love to be in Chuck's position just once.

@jamiestarrett1857 Год назад

You are in his position rn listening at home like him. but chuck just interrupts every episode and guest.

@donaldsmith8648 Год назад

One of y'all's best shows ever in my opinion chuck and Neil are FRAKING hilarious together

@debbiehoagland548 Год назад

My 3 favorite people!! I got so excited when I saw this video pop up. You made my day!

@morbidmanmusic Год назад

wow, so sorry you don't have real friends who should have been your "favorite people". that's weird.

@kanishkaveediyabandara3028 Год назад

Love the chemistry between these 3. Always a delight! Science, humor and comradery

@michaelgonzales-smith9714 9 месяцев назад

Loved the episode. I always love in movies the concept of time travel, for whatever it feeds my soul, just as this episode did. Thank you for the experience.

@Brian-99PHY Год назад

Oh man !! I've been waiting for a long time to see Brian , Neil and Chuck together. It's like a party for nerds .

@Duane_Day Год назад

One of the best star talks. Brian was terrific, Chuck killed it for everybody there with his wit, humor and serious scientific curiosity. and Neil is just Neil who by the way is getting better with age.. Love it.

@andes805 Год назад

there is a change in Neil, look at his eyes

@ballapalleballe Год назад

agree - this one manage to stand out

@myaccount__7269 Год назад

Chuck is very smart, he knows most of these answers already. But he plays it up for the camera and asks questions in a easy to understand and comic way. He and Neil are awesome

@user-tc1fw5ms5s Год назад

Amazing episode! And I agree Brian should come around more! These 3 guys together are always a great episode!

@ballapalleballe Год назад

Thank you guys, loved this episode a bit extra 🙂

@andriisnihyr6497 Год назад

Thank you for a delightful episode, love listening to Dr Greene, his explanation is always clear and on point. Would love to watch Brian Time edition of the show as well ;)

@meghanaiitb Год назад

Ahhhh! So I screamed seeing who’s on. Thanks Startalk, an early Christmas present.

@whpromo Месяц назад

"How to Live Safely in a Science Fictional Universe", written by Charles Yu, is a favorite book of mine based on time travel. Really gives your mind a workout on understanding causal events.

@ronwilliams7611 Год назад

Absolutely brilliant. My favorite episode yet!!! Thank you!

@danielmango1806 Год назад

This was an absolutely great episode, and I’m not even done with it yet. Brian has a fantastic way to speak in a manner that I can understand it. Yes, I need to rewind…a few times..but I can actually understand it. I’ve never related to Chuck more 😂

@wolfie1027 Год назад

There can definitely be a canyon of suffering in translation when it comes to these topics and it takes a person as schooled and deft in the English language as in their own chosen field to break down and convey what they’re trying to say in a way a lay person can understand LOL

@davidg8943 Год назад

Love all your videos Dr. Tyson! You are so brilliant and you explain space and Earthly phenomenon in such a way that average folks can understand. I love all the accents and humor that Lord Nice adds to the show! 5 stars! ⭐⭐⭐⭐⭐

@JonSkov-DK 6 месяцев назад

Always love the episodes with Brian Greene - Perfect trio of entertainment and knowledge :D

@Harrisboyuno Год назад

I love Neil's Eddie Murphy laugh. So warm and he seems so fun to be around.

@psbrayshaw Год назад

I love these. Thank you so much Neil, Chuck and all of your guests. 🔥🙌👍👌

@navjothhimself Год назад

I always waited for this episode.👌 It's such a good way to learn stuff.❣️

@jmanke6057 13 дней назад

Enjoyed Chucks input today

@dancooper8551 Год назад

Great episode! Brian- really miss your daily equation livestreams!

@michaelccopelandsr7120 Год назад

Neil and Chuck for 2024

@suzannepoffel2160 Год назад

Yes!

@ibrarkhan9878 Год назад

Thanks Brian and Neil for your awesome books. I think every Physics student should study Neil and Brian's books.

@shimmerychick Год назад

Love Brian Greene thanks to Startalk! Love Neil and Chuck so much too! This show is amazing, changes lives.

@D3vin_lun54rd Год назад

I LOVE Brian Greene's incredible work, and also his intriguing personality traits. These three ( 3 ) are amazing together.

@johnbgood3488 Год назад

It would be good if Neil and Chuck would let the guest finish his sentences and explanations first before cutting /interrupting Brian Greene explanations in mid sentences. It has happened so many times in the Startalk videos where Neil and Chuck would interrupt the guest explanations in mid sentences. Thank you.

@cubanrafy Год назад

I agree: on random comments and most of Chuck, though if you read other comments, Chuck actually adds entertainment, humor, and a common man value in these talks. But when u have a deeper understanding of the topics at hand, as Neil does, u have questions, lots of them, and if u wait till the end, you'd miss what inspired the question, even if you wrote down your question to ask later, as we're conditioned to think as the "polite" thing to do. Yet in this (and many other cases), interrupting to ask questions is part of the beauty, excitement, and imagination of science...

@Artur-dy1dr Год назад

You ain't seen nothing yet! NDT's every appearance on Joe Rogan is a dialogue between NDT and his own enormous ego, while totally excluding Rogan from the conversation

@hadikhan5197 Год назад

It’s a little bit too much at times.. I’d watch Dave Chappelle or Bill Burr if I wanted laughs or comedy.. it’s entertaining but gets annoying at times..

@pin00ch Год назад

Yessss please!!

@-userJose468 Год назад

I want ask Neil Tyson

@peteresenwa Год назад

This man gave Interstellar the shout out it deserves. I'll love that movie with every second I have.

@bigman4407 Год назад

Yeah that movie was trippy

@ivaerz4977 Год назад

Tenet is better

@Matt-zg5tz Год назад

love this podcast. it's fun, it's educational, it's inspirational, it's like a mixture of what I prefer to watch as a content in one package. it's just DOPE!

@ramzcoldlampin5460 10 месяцев назад

Fantastic episode! I love it when Brian is a guest.

@yawoelevn Год назад

Chuck I’m impressed really.. I can’t believe you are a comedian .. if I didn’t know you , I would think this is a discussion between 3 time travel experts .. it’s incredible

@morbidmanmusic Год назад

Brian May... Jeff Skunk Baxter....??!! People do and know lots of different stuff. Not thinking that is a modern side effect...

@bigman4407 Год назад

Its true tou become the company you keep. Hang around scientists a lot you'll start sounding like one

@Darkflowerchyld718 Год назад

Having just finished Dark this was perfect. Such a great video guys, thanks for all you do. Happy Holidays 💙

@masteronionnorth2341 Год назад

Best time travel story ever... 👍

@cacophonic7 Год назад

I agreed with Chuck! Let Brian go nuts and do questions after. Make it an 8 hour episode!

@KarrGalaxyStudios Год назад

Chuck is so hilarious, Bravo man! I love time travel discussion! Branching timelines (multiverse) at the moment you travel back in time would seem more plausible. Don't ever leave this timeline or your future will never be as you remember it. Good luck ever getting back to your original future either. We need a temporal mechanics course.

@eukendywa Год назад

I like Star Talk very much, the characters, the kookie banter, warmth and commradery{sp}, the topics and incites. Its a science show...with and about people 😁 I want to say how much I enjoy what you guys put together and present. If I were to suggest a topic area it would be coverage of specific space travel settlements. where are we apt to settle/explore first and aside from money what are the biggest obstacles? What big science areas and questions could drive this kind of effort. The whole "back to" and beyond the moon.

@RyanPurcell Год назад

KIPP was Dr. Mann's robot, but TARS and CASE were with Cooper and Brand. I read PLEX was the military robot when Cooper first finds the base.

@PaulSinnema Год назад

Remember the HAL computer in Space Odyssey 2000? Take the next letter for each letter in the name and wonder if this is a coincidence.

@oaguilera81 6 месяцев назад

I love this trio. I think it’s the best version of Star Talk

@dyanc8139 7 месяцев назад

we need more Dr Greene

@andro8206 Год назад

i would love another video about "free will" with the three of you that live on stage discussion was very interesting :p

@ascaaear Год назад

Yeah. Thats my thoughts too... Do we actually have free will? Is free will just a individual false perception? I hope there will be a another video about this topic too

@Genesis--me8ud Год назад

Why is it that we spend our lifetime to try to attract the universe when it’s doesn’t or is it the other way around … so far what I see is that the universe have not cover or title… it’s purpose is not to the attract ? I am so sure beyond that is the heart

@realbadger Год назад

In the Guy Piece remake of _The Time Machine,_ there's an extra bonus feature on the DVD, in which the filmmakers point out that after showing the fiance's various unpreventable death/s several times, they stopped, as it got to the point that they was thinking one would start getting into cartoon territory, like dropping on her an anvil or piano from second floor window...

@ggraemeffrance5434 Год назад

Love learning all this

@awg9dog Год назад

Neil , the quality and wide diversity of your guest's over the last 6 months or so , have really put me back into your orbit, so to speak, and also love Chucks input into the mix as well. Thanx'

@igingmd19 Год назад

I love you guys. Nevermind the wisdom and knowledge you bring with every episode and every guest, but the sheer joy you give us is really something else. i love physics, mostly due to reading your books. but i somehow ended up as an MD.haha seeing your content always reminds me why i loved this field, and why i always will. You guys always bring order to my entropy. Cant wait to read Brian's new book during my down time in the clinic. Cheers!

@michaelccopelandsr7120 Год назад

My idea so I get to name it! Voyager 1 is now in interstellar time or "Mikey's Time." Think of it like Alvin and the chipmunks. "Vyger's" message is sped up now that it's outside our suns time bubble or "Terran Time." It would be faster still if "Vyger" sent a message from beyond the Milky Way's time bubble. (That name is still up for grabs.) Then there's Outside the Local Group time bubble, so on and so on until we get to the, "True Interstellar Time Standard." Now that "Vyger" is in interstellar space, it's also in the Milky Way's STANDARD, faster moving, interstellar time or "Mikey's Time." This can be proven by turning off everything except its clock and transmitter. Have "Vyger" and the IP read time for as long as possible. They WILL show the flow of time speeds up the further away you from any celestial bodies. Until you reach the time standard. •Our sun's time bubble: "Terran Time" we know and have measured. •Milky Way's time bubble or "Mikey's Time." The rate/flow of TIME outside any influence but within the Milky Way: We just got there and are still figuring. Wild guess I'd say time will increase in speed, now and until Vyger is outside the Ort cloud .007-.07% faster, maybe. Just for reference. •Local Group's time bubble or the rate/flow of time outside of any influence but within the Local Group: Name still open and unknown. Wild guess .08% to a couple seconds faster, maybe. Used just for reference. •Outside any influence in the, "True Interstellar Time Standard," or...;-P Name NOT up for grabs BUT just begging to be measured. The rate/flow of time is fastest here so, surfing time here is choice. Though it's best to have your motor boat. ;-P A minute is a minute in all. It's the rate/flow I'm talking about. The Milky Way's Interstellar Time Standard will be known as, "Mikey's Time." Pass it on, please and thank you.

@Bellathor Год назад

Brian is always great, and so are Chuck and Neil. Nice one.

@7deepbreaths.sounds Год назад

So far so good... 3 of my favourite guys in Science...Neil and Chuck Nice...the Chuck D and Flava Flav of PHYSICS. Brian Greene .... the Joel Olsteen of String Theory...I LOVE this movement!!!

@darthsirrius Год назад

I don't know if it's the actual first mention of literary time travel, but Jormangander travels backward in time when fighting Thor at Ragnarok in Norse mythology, which predates Charles Dickens by about a thousand plus years lol.

@aarongermain7655 Год назад

Bro played God of War and is on a mission

@dunderwood4444 Год назад

Mr. Sommelier may have actually sent Lord Nice Wine🍷 🥂 had he known he was communicating with a actual American Lord. Outstanding episode as anticipated #LordNice #Dr.BrianGreene #Dr.Tyson #TimeTravel #UntilTheEndOfTime #RespectLordNiceTitle (Shout out to Dr. Rick Marshall and Dr. Holly Cantrell "The Land Before Time") .Tachyons ROCK

@nitroux6969 7 месяцев назад

im really in love with time theories, really glad they do this. im sad I never found this channel before...

@alexanderabrashev1366 Год назад

Finally Brian Greene again! 🙌

@Stone815 Год назад

If the worm hole/Time portal has mass that moves with the earth (which it would otherwise it would start moving away once created). It's possible that the other end instantly travels and moves through time along with the earth as well. So the worm hole was theoretically always there up until it's opened and visible at the other end.

@Frozengrapeguy Год назад

You guys are so funny. More so than any tv show I watch or movies, I consistently find myself laughing more watching StarTalk than anything else! Love it

@liliezz1645 11 месяцев назад

Gorgeous work

@nickygui8056 Год назад

They are so clear with their talks

@jacobaccurso Год назад

Brian Greene lives across the road from me (probably not this Brian Greene’s road, though 😂)

@DirtDigglerDetecting Год назад

Mind Blown. WOW

@patrickhughes4914 Год назад

Chuck really makes Neil laugh. I find myself laughing at Neil's laughing. I like that even though Chuck is there for the humor, he's smart enough to join the conversation.

@rimmarosenberg2346 Год назад

Coolest video so far! Looking forward to see more!

@Esakosarara Год назад

For all the flaws within that movie, The Matrix: Revolutions put it perfectly: "you didn't come here to make a choice you already made it. you're here to try to understand why you made it". "Destiny" is just semantics. A person, under the exact same circumstances, will always choose the same path, hence "Destiny". I'm not even a scientist and It's obvious to me. The "destiny" of my 10 year old me will always be me.

@edgarluna738 Год назад

I really wanna thank you Neil and Chuck for all these videos and explainers, I think they're as informative as entertaining, and for me one of the most interesting content to find on RU-vid. Send support from Mexico🇲🇽

@brianhemorrhage Год назад

Wow love this podcast, very curious and though provoking conversation

@leaf_xcvi 2 месяца назад

20:44 i loved this question. Really interesting. Food for thought. Photons being able to move forward & backward in time.

@terryparham3913 Год назад

Excellent show and fascinating discussion! Thanks Neil and Chuck. Your guest was one of the best.

@carlosvaladez2186 Год назад

My favorite guest. Also Chuck and Neil killing it.

@chrismnutone8421 5 месяцев назад

These guys are great to listen to!

@mrstevenson2091 Год назад

Two of my favs Tyson and Greene 👍👍

@justinwood2881 Год назад

Yes I believed everything you ever said👍🙏🎄 love your podcast thank you

@MowSow Год назад

It’s not really an option to “believe or not believe” these are simply scientific facts they are presenting and explaining.

@jewscontrolyou9730 Год назад

@@MowSowearth is flat ur life is a lie

@realbadger Год назад

Time Travel will always exist as long as we have fiction writers. 😉 Frederick Brown wrote tons of often dark humoured short stories. One had a scientist doing a press conference in which he demonstrates his time travel machine. He sends a ping pong ball a minute into the future. He then explains about going _back_ in time, and the ping pong ball suddenly appears. The scientist explains he's _about_ to send that from the future (in about a minute), back to the current point in time. One of the press reporters asks as the ping pong ball is _already_ here, what happens if the scientist _doesn't_ send it from the Future point from which he _would_ send it. The scientist finds this a fascinating question, and he adds that would be interesting to check. "All right, when the time comes I _won't_ send--" And the entirety of reality disappears instantaneously... except for the ping pong ball.

@stephenlane9168 Год назад

What a fantastic video. Great chat and very immersive. 🙏👌👍

@benjaminvanlandingham5568 Год назад

Love These long explainers....Ago with some quickies

@realbadger Год назад

I never thought _A Christmas Carol_ involved time travel; even the Ghosts clarify he's seeing Visions of what has transpired, is transpiring, will transpire [technically _may,_ as the future would be a choice; he was being shown *_a_* (possible) future that would happen if it had not been shown to him]...

@Val_Kary Год назад

I mean, it's possible they plucked the memories out of his head and showed them to him, since we're talking magic (ghosts). But the scientific explanation for seeing the past is photons from the past traveling forward to your retinas in the present (or, as they conjectured, you in a wormhole looking out at the photons from the past as they were emitted to see what was happening X number of years ago).

@michaelccopelandsr7120 Год назад

Time is fascinating. I worked the subway stations for nearly 10 years. From one end of the city to the other. Every so often I would notice the city would be saying that, "Today just flew by" or "The day was just dragging along." How can an ENTIRE CITY, with NO INTERACTION with each other, until they used the subway, complain about the same time paradox unless it was effected by it? Maybe a time distorted bubble the earth passes through in its revolution around the sun. Maybe random waves of time distortion hitting the earth? Maybe they're given off by the sun. Maybe they're from outside our Terran system and reach us in intervals. ???? 🎶Ti-i-i-ime, is on my side. Yes, it is!🎶 p.s. If you can think of a better way to do a blind survey - of an entire city - in that small window of opportunity, well then, I'm all in. Until then, I invite you to spend a couple years in the subways. Between 2pm -10pm and you'll see for yourself. Just listen as an entire city gets off of work and gets out of school. You'll see it's more than a, "coincidence of circumstances." ;-P

@Bluebloods7 Год назад

Weather, or particular day of the week I'd wager. Early day of week = longer and dragging. Later day of week = it flew by.

@DannyJoh Год назад

Might be one of these statistical errors we so often do. You remember the days when you remember many people saying the same thing, but didn't think so much of the days when people expressed the opposite experiences. 🤷 Sounds though like a super interesting theory 😃

@jacobaccurso Год назад

They make some pretty good sandwiches in those stations. I like the $5 block long.

@uuvvwuuvvenwuuvvzzfurr2915 Год назад

Blue skies vs overcast vs lots rain.

@Bigfaddytv Год назад

You have kids and realise that time really does fly. No slow days since the birth of your first child I have four and now it’s going light speed 🤯

@ameralbadry6825 Год назад

Very smart talks, great team. Interesting way to engage people in a none boring way!

@theeendo3677 Год назад

The funniest thing about Chucks jokes are Neil's reaction to them. He cracks up at every joke lol

@ShauriePvs Год назад

Brian Greene and Neil best team

@tonynagy2042 Год назад

👽Great discussion as always Neil. Dr. Strange has a 'Stargate' creating ability of sorts not mentioned in the video. Knowing where to 'rip' spacetime for a desired location seems impossible. Another interesting topic from the movie interstellar not mentioned is the 'singularity' being inside the 4th dimension tesseract. I would love to hear your thoughts on this subject. Lastly, your thoughts on a possible scenario that we are not the first technological civilization that has inhabited Earth. For example, what if 100 million years ago a civilization left Earth knowing an asteroid was coming? The one that took out the dinosaurs. Cheers Blessings. 🙏