Brian Cox
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sort of distances or time measurements or anything in the universe it kind of loses all sense of scale and then you could you could reimagine that as looking somewhat like the beginning it's something like that that he has in mind but i really couldn't explain to you i don't understand what what he's what he's proposing wow so it but what it does tell you is that we don't know
sort of distances or time measurements or anything in the universe it kind of loses all sense of scale and then you could you could reimagine that as looking somewhat like the beginning it's something like that that he has in mind but i really couldn't explain to you i don't understand what what he's what he's proposing wow so it but what it does tell you is that we don't know
why or how the universe got into the state that we call the big bang so we don't we don't know whether the universe existed before that we have theories that it did theories called inflation which are very popular theories you'll find up in all the textbooks which say that before the universe was hot and dense which we used to call the big bang space and time is still there
why or how the universe got into the state that we call the big bang so we don't we don't know whether the universe existed before that we have theories that it did theories called inflation which are very popular theories you'll find up in all the textbooks which say that before the universe was hot and dense which we used to call the big bang space and time is still there
why or how the universe got into the state that we call the big bang so we don't we don't know whether the universe existed before that we have theories that it did theories called inflation which are very popular theories you'll find up in all the textbooks which say that before the universe was hot and dense which we used to call the big bang space and time is still there
And the universe is expanding extremely fast. It's called inflation. And then that period draws to a close. And that expansion slows down and almost collapses and changes. And the energy that was driving the expansion gets dumped into space and changes and ultimately makes the particles out of which we are made. So that's actually the standard model of cosmology now.
And the universe is expanding extremely fast. It's called inflation. And then that period draws to a close. And that expansion slows down and almost collapses and changes. And the energy that was driving the expansion gets dumped into space and changes and ultimately makes the particles out of which we are made. So that's actually the standard model of cosmology now.
And the universe is expanding extremely fast. It's called inflation. And then that period draws to a close. And that expansion slows down and almost collapses and changes. And the energy that was driving the expansion gets dumped into space and changes and ultimately makes the particles out of which we are made. So that's actually the standard model of cosmology now.
So we do have an idea that we redefine the Big Bang as the hot Big Bang. And it's not the origin of the universe in time. It's the end of inflation. And then you get the question, what is inflation? Did that have a beginning? And the answer is that in Einstein's theory alone, then yes.
So we do have an idea that we redefine the Big Bang as the hot Big Bang. And it's not the origin of the universe in time. It's the end of inflation. And then you get the question, what is inflation? Did that have a beginning? And the answer is that in Einstein's theory alone, then yes.
So we do have an idea that we redefine the Big Bang as the hot Big Bang. And it's not the origin of the universe in time. It's the end of inflation. And then you get the question, what is inflation? Did that have a beginning? And the answer is that in Einstein's theory alone, then yes.
And Roger Penrose actually and Stephen Hawking proved this a long time ago, that just given Einstein's theory, you have this singularity, just like kind of like the black hole singularity, but at the beginning of time. But we do know that when you put quantum mechanics in and add that in, then it gets messy and we don't really know what that means.
And Roger Penrose actually and Stephen Hawking proved this a long time ago, that just given Einstein's theory, you have this singularity, just like kind of like the black hole singularity, but at the beginning of time. But we do know that when you put quantum mechanics in and add that in, then it gets messy and we don't really know what that means.
And Roger Penrose actually and Stephen Hawking proved this a long time ago, that just given Einstein's theory, you have this singularity, just like kind of like the black hole singularity, but at the beginning of time. But we do know that when you put quantum mechanics in and add that in, then it gets messy and we don't really know what that means.
And so Stephen Hawking had a thing called the no boundary proposal. Basically the point is we don't know. So we don't know whether the universe had a beginning in time, I would say is the correct statement as we are at the moment. Part of the reason why, by the way, getting back to the black holes, they're important and interesting.
And so Stephen Hawking had a thing called the no boundary proposal. Basically the point is we don't know. So we don't know whether the universe had a beginning in time, I would say is the correct statement as we are at the moment. Part of the reason why, by the way, getting back to the black holes, they're important and interesting.
And so Stephen Hawking had a thing called the no boundary proposal. Basically the point is we don't know. So we don't know whether the universe had a beginning in time, I would say is the correct statement as we are at the moment. Part of the reason why, by the way, getting back to the black holes, they're important and interesting.
Because the study of black holes and this idea of information and how does it get out, that's leading us to suspect that space and time themselves are not fundamental, but they emerge from something else. So just in the way that we've been talking about consciousness. emerging from this physical structure in our heads.
Because the study of black holes and this idea of information and how does it get out, that's leading us to suspect that space and time themselves are not fundamental, but they emerge from something else. So just in the way that we've been talking about consciousness. emerging from this physical structure in our heads.
Because the study of black holes and this idea of information and how does it get out, that's leading us to suspect that space and time themselves are not fundamental, but they emerge from something else. So just in the way that we've been talking about consciousness. emerging from this physical structure in our heads.