Katie Mack: Life-altering questions about the end of the universe | TED
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- Опубліковано 15 чер 2024
- In this fascinating conversation, cosmologist and TED Fellow Katie Mack delves into everything from the Big Bang theory to what we see at the edge of the observable universe to a few ways the cosmos might end. Stay tuned to hear Mack recite an original poem on the wonder and marvel of existence. (This conversation, hosted by deputy director of the TED Fellows program, Lily James Olds, was part of a TED Membership event. Visit ted.com/membership to become a TED Member.)
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This makes me feel a sense of wonder and and existential dread at the same time.
Welcome to “outside earth” 😁😁
Most people who think they know--just don’t know.
"Existential dread...?" Your existence is eternal. The universe is physical and finite - you are not. The opposite of what she said is the truth. Instead of us being "insignificant" it is the universe that's insignificant. It is transient - your soul is infinite.
Well said!
You can easily scratch the "at the same time" part, for time is not a fundamental property, it's emergent at best.
*"Never let the future disturb you. You will meet it, if you have to, with the same weapons of reason which today arm you against the present." - Marcus Aurelius*
The Stoics. And we think we know. Good luck with that. Thanks for this post!
Interesting stuff. Thought she did an amazing job making difficult concepts understandable. Makes me want to learn more!
Her book is fab :)
The universe is far much older than what we see! Lovely poem, true words.
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
what I get from this in summary - it brings home the realization that NOTHING IS FOREVER... sooner or later, everything comes to an end, ... so, enjoy it while you can and make the most of it...the closing words of her poem are so absolutely appropriate for ending this TED talk...
Well if this doesn't make you think I don't know what will
Love the knowledge she's sharing!
The "Sagan" is strong with this one .Good job Katie.
I first heard about her from Hozier's song, No Plan. She did a fantastic job explaining this stuff.
"As Mack explained, there will be darkness again."
I dig the way she explains things!!
Space and time are what we make it in order to understand it
This was really cool. I would’ve liked to hear her thoughts on the chances of us being in an eternal recurrence.
No everyone will die only God is immortal
@@miophia9181 I think you meant to say immoral
There are most definitely hidden secrets, portals, and existences beyond the proverbial veil.
*Reflection is a crucial key in understanding what lies ahead.*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
How can I plan anything with all this uncertainty about the future? 🙂
with a little bit of scale, a lot of perspective, and some renewable source of hope
Lovely poem to end the conversation 😁👍🏻
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
Wow Thanks!
This is so beautiful at so many levels, thanks for this really beautiful conversation about the universe. Usually the concept of universe is very depressing for me, I remember first time I feeling crazy about the idea of universe when I was 5 years old and that is when I took religion seriously to not to bother about the idea which I can't comprehend. Well ultimately religion faded away and I am still there trying to escape.. Videos such as these are very refreshing on the topic, thanks for the positive and joyful attitude with the humble touches of 'we don't know'.
How is this beautiful? This is utterly depressing. We must have watched different videos.
@@ProjektKlover it all depends on your current state of mind about the universe, for me it has been amazingly uplifting..
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
Nice talk
@11:45 worth mentioning Nima Arkani-Hamed and the Amplitudes project. See his Messenger lectures on “The Doom of Spacetime”
That poem... I don't normally enjoy/connect well with poetry. I loved her words
Wow, she's so inspiring! Wish I studied for astrophysics :D
Yeah but... the bible says the earth is only 6000 years old. GOT EM!!
Well bible is not authentic it is fabricated only one book is authentic
@@miophia9181 it's called sarcasm genius.
Sarcasm or not Where does the Bible say the Earth is 6000 years old
@@SharpSapphire Concerning the age of the Earth, the Bible's genealogical records combined with the Genesis 1 account of creation are used to estimate an age for the Earth and universe of about 6000 years. Is your google broken ?? Or you simply that dumb ?
She stated, not in so many words...
We are dust.
We are not essential, nor instrumental in our Universe.
We occupy space, but not time (certainly not everlasting time).
Who will take issue with this?
(Now I will sacrifice myself, it was a great talk. We need to appreciate every view, regardless of our own opinion. This is a tough one, but it's somewhat natural and foundational to how we question our own existence. I loved it. But I still do have faith.)
Man's hubris...we have the mental capacity to understand the complexity of the universe. The more we learn, we realize the less we know. 🙂
We know nothing. Every Generation or so we try and figure it out. Lol. You’ll find out once we’re gone from this body. And even then??? Cheers
When sentient beings are truly able to 'pass the knowledge' to one another, with each generation continuing to COLLECTIVELY build upon facts & truths (and discard ritualistic beliefs and egotistical fallacies)... it will create a cascade of TRUE wisdom.
However... since human minds are SOOOOO SLOW, so limited in capacity, and bound by both age and emotional instability... this won't occur until digital, nano-augmentation of brain capacity and cognition can be altered.
Good luck: you're going to need it. 😎
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
Release the talk with SHELL CEO I WANT TO SEE THE WHOLE TALK...TED
Just wanted to ask about the poem, because the other part is way beyond my knowledge: who is the one who says "I want You to..."? Thx
It would appear that the "I" is her--the speaker and author.
I also personally have some words to share, though. I would argue that they are far more profound. ✨✨✨
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
You have it. You have what you need to achieve all of your goals.
It's time to quite looking for what you don't have, and put your full attention on what you do have. It's time to bring out the best version of yourself, so that everyone around you can grow too.
Sure don't.
Hello there
Thx. When did "initial conditions" start? Is it possible that inflation preceded the big bang? Should the big bang be only one?
Cosmic Inflation is thought to have preceded the *hot* big bang event, the earliest moment that we have reasonable evidence for, and it also created the initial conditions for this event. We don’t have evidence for an earlier big bang event arising from a singularity and leading to Cosmic Inflation. Rinse and repeat universes seem plausible but no evidence yet exists.
@@cloudpoint0
A new proposal, another story of the new beginning of the old beginning of our (so far) observable universe: "This new picture gives us three important pieces of information about the beginning of the universe that’s different from the traditional story that most of us learned. First off, the original notion of the hot Big Bang, where the universe emerged from an infinitely hot, dense, small singularity and has been expanding and cooling, full of matter and radiation ever since, is INCORRECT. The picture is still largely correct, but there’s a cutoff to how far back in time we can extrapolate it."
@@IoanesRakhmat
I agree with your reply. No serious cosmologists today think there was a singularity in the beginning if they even think there was a beginning, or during the hot big bang phase transition otherwise. Either way, something must have existed before the Big Bang, and a universe must exist for something else to exist.
I know your words come from Ethan Siegel. I follow him.
@@cloudpoint0 So, Quantum fluctuation (QF) still did happen before the hot big bang, with a note: QF did not give birth to the big bang, but rather to cosmic inflation.
@@IoanesRakhmat
QF accounts for the ripples and irregularities we see in CMB. These are thought to have arisen during the inflationary phase before the hot big bang happened and before matter or radiation existed (when the universe was super cold and empty). But QF are not because of inflation. QF always exist, but inflation magnified them as the universe rapidly expanded to make them visible to us in various ways. They left space bumpy in a sense so that matter would latter fall into the ripples and irregularities.
I'm not sure if QF gave birth to cosmic inflation. If you want me to totally speculate, try out the following.
Matter and radiation did not exist before the hot Big Bang so it is unlikely that energy as we know it existed either, not active energy anyway. However, quantum fields contain some type of intrinsic energy, a kind of potential energy, and quantum fields are thought to be a persistent feature of space as long as space exists, even empty space. Hawking believed 4D space existed before the hot Big Bang but not time although he mentions that an imaginary time did exist. The point is some kind of empty universe existed earlier.
Before anything material existed, empty space just perpetually expanded (if adding more empty to an already infinite empty volume makes any sense). There was no gravity to prevent expansion and space likes to spread out if it can. This expansion led to potential energy being accumulated in a quantum field at an ever faster rate, probably the field that was the progenitor of dark energy and perhaps all other fields. It has been called the inflaton field.
Imagine an empty universe with infinite space and a quantum field accumulating potential energy over unlimited amounts of imaginary time rapidly pushing empty space apart until some density threshold is reached. Some think the hot Big Bang was a moment when that quantum field hit a density threshold and released or condensed its huge pent up potential energy in the form of physical matter and radiation possessing active energy. It snapped, and broke into multiple fields. Thereafter, the process that led to the universe that we see now is not really speculative but some details are not yet understood.
FYI - The inflaton field is a hypothetical scalar field which is conjectured to have driven cosmic inflation in the very early universe. The field, originally postulated by Alan Guth, provides a mechanism by which a period of rapid expansion from 10−35 to 10−34 seconds after the initial expansion can be generated, forming a universe consistent with observed spatial isotropy and homogeneity. - Wikipedia
Every second past is another begun
*Reflection is a crucial key in understanding what lies beyond the veil.*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
Our neurons look like strings of galaxies and both will die or end. Our universe may be pushing away on an adjacent universe while we're slowly making the other universe expand or contract on the other "sides" Like soap bubbles fighting in a sink and hanging on. Soap bubbles don't last, same goes for suns, galaxies, to the universe? multiverse ? clusterverse ? ( word I made up to name strings of multiverses )
a few questions I have and have tried to get answered by reading books by Stephen Hawking, Carl Sagan and Neil DeGrasse Tyson....1) when we look back in time, what direction do we look? north south east west, left right etc...2) was the Big Bang a circular explosion or a lateral explosion....I sit in bed at night and try to figure these simple things in my mind
🤔 I guess looking in the past depends not on direction but distance of the object, the further the older... BigBang concept is expansion from a point in every direction
We actually can see further than 13.8 billion LY (40+ billion) because of inflation and dark energy. Objects close by are as old as distance, but further out light gets distorted.
True, but at that point, it's mincing hairs on the greater picture, which is... there are some things which we cannot SEE... but we ALSO are certain that they're there. 100%, actually.
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
@@Novastar.SaberCombat The observable universe is 93 billion ly, not 28, that's more than a hair
جميل
💛
could it be the edge of the universe is only the edge because the rest of it has not formed yet
The "edge of the Universe" is where the limit of our observations stop because of the speed of the expansion of the Universe which is actually faster than the speed of light from our location.
Very interesting❤️ God made a beautiful world
I feel so fking small
And simultaneously, even the humans with the LARGEST impact on Earth... are also 'small' as well.
Perspective is everything. LITERALLY everything. ✨✨✨
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
Where is the universe expanding into??
The cosmos is everthing , i know its hard to imagine but everything is expanding . But i think that u are wondering where the universe sits .. its like a 4 dimensional space time continuum , strings of quantum foam ( something that a mammalian brain with limited senses and cognition can never comprehend or understand) …but can be extremely fascinating tho 🤪
This will be the death of me. Also you. And everyone. And everything.
Very interesting, God makes the beautiful world....
That's an assumption
Definitely wont be around long enough for them to alter my life that's for sure
*I'm startdust*
Is it possible the reason we see the universe expanding is because it is backwards to us? Instead of theorising dark matter pushing everything faster and further apart perhaps it is really collapsing and accelerating as gravity does on a solar system scale... gravity and time may be disconnected. Sorry if this is gibberish and rambling.
hmmmm,,, what's outside the universe?
We should be careful on money useage,if you are not spending to earn back,then stop spending.
Apparently my view on the solution is to venture into business .
True ! Even some rich men made it through investing there money in something doing and they made it.
I do real estate,stock market ,forest trade and cryptosystem.
The right chioce of an investment has always been a big problem for me I know picking a wrong investment will leave a big scar in the future
@@austinhay2594
There might be many investments out there but if profit must be considered,which is the actual sole of investment, I will advice you to go into bitcoin trading because it has higher profit than most investment.
Does aaaaanyone else hear the quiver in her voice…????
the ninety percent of the universe that's missing from the very clever sums could just not exist yet i think it would give everyone a breathing space to the death of everything heat death
Space and time. Not being real . This statment can be understood by those who are on the path of quntom mechnics and not just the physics of the matter.
🤪🤪🤪🤪Bang, bang!
I love theorist’s…. None of them actually agree 100% and I love it!!! I find it hilarious!! Yet none of them know that when word theory…. Means…a guess or idea but no firm proof
Scientific theory Vs a Theory.
Look it up. And Ellipsis in the way you are using it is only 3 dots... bruh.
My life has totally changed since I started with $7,000 and now I make $ 29,450 every 11 days.
i'm new to investing, how do i do it?
after watching so many UA-cam tutorial videos about trading I was still making losses until Mrs Elizabeth started managing my investments now I make $21,560 weekly. God bless Mrs Elizabeth Armstrong Palmer she’s been a blessing to my family.
I have really heard lot about Mrs Elizabeth, please can I have her info?
I invested $10,500 and I make $23,450 weekly trading with her, I only trust Mrs Elizabeth Armstrong Palmer with my investments. I am now able to send my kids to great schools in California, all thanks to Mrs Elizabeth A Palmer
@@slessormary5793 you can easily reach Mrs Elizabeth over What’s apk Messenger. I'll leave her number just below this comment
How did the universe begin? God, bored one day turned said to St Peter and said “pull my finger”
Brilliant
End of the universe?! Has Katie not heard of the Omega Point?
1st comment 😁😁
Absolutely mind boggling, but that's where it stops for me. In any scheme of things, the universe is mostly irrelevant.
Don’t get so wrapped up in this. There is a good chance this is just an allusion we can fully explore in a reality state. You can make anything as complicated or as simple as you want.
Looking for hidden messages in movies is self-induced schizophrenia
The Earth is Flat
Only if 'flat' means 'round, but extremely, egregiously long'. The Universe would seem 'flat' as well... but it's also very likely that it WOULD (eventually) wrap around itself--just like Earth or any other planet, moon or star. Not that anyone would ever discover this via traditional propulsion (lol).
*Reflection is a crucial key in understanding what lies 'beyond the veil'...*
🐲✨🐲✨🐲✨
"Before I start, I must see my end.
Destination known, my mind's journey now begins.
Upon my chariot, heart & soul's fate revealed.
In Time, all points converge--hope's strength re-steeled.
But to earn final peace at the Universe's endless refrain,
We must see all in nothingness...
...before we start again."
🐲✨🐲✨🐲✨
-- Diamond Dragons (book 1)
Asteroid or sucked by blackhole or GLOBAL WARMING
The microwave background radiation is the remnants of the hot dense star that birthed our universe as it crunched into a singularity and created our temporal dimension. It's light will stay with us from the beginning and to the end of time. The "expansion" caused by "dark energy" is simply the emergent phenomena of each causal group traveling towards a temporal singularity, the only escape would be if FTL travel is possible. Depending on the mass of the singularity it's possible that even molecular bonds will drift apart and every atom will be cold and alone.
wait the earth isnt flat and the only thing in the universe??
The Earth is Flat
everybody with half a brain NEW FULL WELL it was speeding up "except" it seems the scientists". why because they prefer dreams instead of the obvious right under thier noses. what a very appealing lady, wow""i could listen to her dreams for hours"
What a contradictory poem, view, thinking - just shows that Cosmologists do not have a clue whatsoever. If we are absolute random, uncaring and of no significance then we would not be wondering how come we are here. I cannot believe that and we may never know the full truth so here is my take just as we began with a big bang, the end is equally dramatic. Everything that has a beginning will have an end. Whatever force, energy, power, authority that began this universe will one day, hr, second will roll up the universe and evaporate it - then another big bang will produce a new one. By that time we, the common people will witness this creation as we become the new inhabitants of not just Earth but of the entire universe.
"Comment"
If we see so far back that we “see” the beginning…. Then why isn’t there proof?
What makes you think there isn't?
hundreds of yrs "believing" in fantasy gods, now replaced with fantasy thoughts of a place we can never be, and just like heaven eternity awaits, ha ha ha, look after the planet not fantasy,s there can be no future without a NOW OR TOMMOROW. ensure those 2 things and maybe your dreams might last for eternity.
[2] And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters.
Come to Ted saying you don't know....... "here is the answers to the universe! Asking the what, ... and failing...... the how is important. I hate Ted talks now. This is dumb.
Hello Randy👋👋
Interesting contradiction in her "poem." She wants the wonder of the universe to mean something to an "absolutely insignificant species."
The rest of it was the standard cosmological guessing game.
She started by saying that we know quite a lot about the universe when in fact we "know" very little. It's funny (but not really because too many people believe what people like those in her position say) seemingly smart people make factual statements about the age of the universe. They have no idea & are basing these statements on current observations which are inherently limited by current technology and extreme biases.
There should be a "for entertainment purposes only" disclaimer on this.
Someday science will finally come to the realization that the picture will only be more complete, true and accurate when the metaphysical basis of existence is accounted for.
Nice try little girls.
No worries the guy that wrote this will be rearranged many many times before the universe will ever meet it's end.
The four states of mater are all made of protons neutrons and electrons I certainly wouldn't discount any negatives
Spinning wildly out there somewhere Would you Miss Mack?
Investing in crypto now should be in every wise individuals list, in some month time you'll be ecstatic with the decision you made today
Most intelligent words I've heard
Crypto is the new gold
That wont bother you if you trade with a professional like mr. Richard logan
I heard that his strategies are really good
Yea my first investment with mr. Richard Logan earned me profit of over $25,530 US dollars and ever since then he has been delivering.
He has really made a good name for him self
Sounds like a big waste of time. A lot of ? and theories. Theories arent facts. Lets just pull our head out of the clouds and focus on our own horizon. Ted call me. Lol.
God created the universe.
for all we know, that may be true. we don't know.
Not to worry. the universe has no end and will not ever have an end. When the Universe stops expanding everything will change but will not cease to exist, For those of you that believe in evolution THEORY, whomever remains will "adapt" to the new environment. lol They may turn into slimy slugs, who knows?
There is a difference between a THEORY and a Scientific Theory. But you may have to read another book other than your buybull to get that info bruh.
Evolution is both a fact and a theory. It is an incontrovertible fact that organisms have changed, or evolved, during the history of life on Earth. And biologists have identified and investigated mechanisms that can explain the major patterns of change. Since 1859, evolutionary theory has become the most universal and, hence, widely tested of the scientific theories in biology..
Where can I read your dissertation ?
This universe will end nothing is immortal the sun will die everything will die,are you dumb do you think we were sent without an objective and live forever,such corrupted ideas
@@miophia9181 lmao.
@@joegiuseppepalermo2755 For the most part I agree with you, but nothing has actually been proven biblically or scientifically. I am A Hindu, btw.
The Book of Genesis is an account of the creation of everything. God said, “Let there be light,” and there was light... and He saw that it was good. The light is the manifestation of God.
Hello Lymn👋👋
🌈
@@tuccum if i May ask,where are you from??
@@trevorjennings721 hi I hope this Sunday your receive all God's favor for yourself and those that are close to you as well.
@@monkeyflower954 Amen🙏🏻
pfff... bla bla bla.....
Perhaps it all was just a big fart from the God that’s now dispersing 😇
You know nothing. Big guesses
Lets hear your theory.
I'll wait here.
@@joegiuseppepalermo2755 many many a plethora of theories for centuries. You think we’re the only generation who knows it all. Yeah right. I do not go there. Just appreciate and wonder what the planets have in store. Just enjoying every breath I take. We think we know so much. 😂🤣
The universe will end surely it was written and said by Jesus Christ in the bible..but before the universe ends it's the coming of Christ that will be taking place first as it was Said in the bible.
I don't know about anyone else... but you convinced me.
Are you saying JC will show up at the last moment when its too late for him to be useful to the universe or to us?