Suppose there are 2 planets the size (diameter) of Jupiter. Both have the exact same mass. They are separated by a distance of about 10 times the diameter of the planet. They are both at rest. Now, will they start moving towards each other or stay in the same place?
This is a sort of thought...
I totally get this. This is talked about in Brian Greene's book Hidden Reality.
The only problem is, since that 4th spatial dimension is so small, I don't see how an entire universe can reside in it.
I think I am getting a little bit idea of what is going on.
Inflation's mathematical physics gives equations which shows that there can be bubble universe which are in different space-times.
Suppose there are 2 people in Bubble universe A and B, one in A and the other in B.
If A takes a...
So, in the above multiverse picture, what is the black stuff, the stuff outside the bubble?? What is that? Is that 'space' or the 'inflation field'??
The 'inflation field' resides in 'space', right?? So, is the black area 'space'?
Is it another 4-dimensional geometric which is spatially...
I can believe this. But PeterDonis says that those bubbles are spatially infinite.
So, I don't see how even more than one bubble can exist anyway.
I don't get the 4-dimensional geometries thing. I majored in biology not physics.
When you mean 4-dimensional geometries, do you mean 3 spatial...
Can you pls elaborate a bit further how 2 spacetime
Can you pls elaborate a bit further what this means? I thought that space-time was just a mathematical concept created by Einstein to explain Relativity.
I always thought that there is no such thing as space-time, like there is something...
The scientific method is HYPOTHESIS -> EXPERIMENT -> ANALYZE -> CONCLUSION.
There are special cases where there is no HYPOTHESIS.
Can you give some examples of things discovered without giving a HYPOTHESIS?
That is, they do an experiment and they discover something new without a hypothesis...
How can there be other spatially infinite objects.
If there is ONE specially infinite object, then surely that is what occupies EVERYTHING, because it is infinite.
How can there be OTHER spatially infinite objects?
PS: Mathematically maybe, but physically how can 2 infinite spatially objects...
You mean the current best-fit model with or without inflation?
If the individual bubble universes are also spatially infinite, then there is no room for other bubble universes to exist. So what do you mean by this?
A lot of scientists say that there is lot of evidence for Inflation and evidence is mounting and it's just a matter of time that Alan Guth gets the Nobel prize. So I think we can say with quite a lot of confidence like over 99% that Inflation happened and is also currently happening now else...
Problem is this. Matter and energy are the same thing. They are interchangeable (E=MC2).
But the problem is, that matter and energy has to reside inside space. Everything resides inside space.
Without space nothing can exist.
So, I don't think you are right when you say that there was no...