Fudgetusk,
Some time back there was an Horizon (I think) program called 'everything we know about the Universe is wrong'.
It was quite interesting.
But maybe that is the real problem. That we have taken a line of mathematical speculation and run too far with it.
Prof Kaku is well known, when talking about nothing, as in 'everything came from nothing' for stating that 'it all depends upon how you define 'nothing''.
Maybe with infinity it all depends upon how you define it.
...If the universe is infinite then how big would the singularity have been? It would have been infinite too. So how could it have exploded? There was no room for an explosion...
This points to something more fundamental.
I.e. What was there before the universe ?
As you point out, there has to be somewhere for the Big Bang to bang in.
That would seem to imply a much bigger 'some place else' where the Universe was born. And that also suggests there may be other universes existing in the same 'some place else'.
So the funderment that gave birth to the Universe we know (all the background wiggly quantum bits that apparently exist and do not exist at the same time) may indeed be infinite in the accepted way. This will not in any way prevent our universe being born.
...The singularity would have occupied all of infinite space, which is impossible anyway...
Why so ? It was supposedly an 'infinitely' small point. Why should it not happen in an infinitely large space ?
We just don't know that anyway. Apparently the maths collapse when you get down to that level; most convenient.
This brings us to the question 'where is the centre of the universe?'.
Some say there isn't one. yet logic says that an explosion, particularly one of the Big Bang kind, must have had a point of origin. That would be the centre.
If there was no centre then the idea of a singularity is out the window. Using that model the Universe expanded from a point.
Anyway. That's just my point of view.
As for the word 'magical', I don't like it because it is redolent of magic tricks. and we all know that magic trick are really just slight of hand etc. The observer is just being fooled.
If something is not explainable by logic, then it is simply illogical or unknown. And unknown really means unknown at the moment.
INT21
>>Prof Kaku is well known, when talking about nothing, as in 'everything came from nothing' for stating that 'it all depends upon how you define 'nothing''.
Yes he defines nothing as having dimensions therefore things can happen there. My point is that this version of nothing is not nothing, it is something. It's a common error(or trick) amongst scientists because they know full well that something cannot come from nothing. So because they need to stay away from the word 'magic'(to keep their funding and their sense of reality) they did a sleight of hand and invented a new kind of nothing(with dimension and even energy) which in fact is SOMETHING. Kaku's nothing is really theory b in my OP that something always existed(which is impossible because as Kaku points out in the real world there is no infinity).
Scientists who use the something version of nothing are not explaining where energy came from. They are just shifting the goal posts...for want of a better term.
>>Maybe with infinity it all depends upon how you define it.
Infinity is limitless according to the dictionary. In physics it is a number that cannot be counted. I prefer the former. How would you define it?
>>So the funderment that gave birth to the Universe we know (all the background wiggly quantum bits that apparently exist and do not exist at the same time)
may indeed be infinite in the accepted way. This will not in any way prevent our universe being born.
How do you come to that conclusion?
>>
...
The singularity would have occupied all of infinite space, which is impossible anyway...
Why so ? It was supposedly an 'infinitely' small point. Why should it not happen in an infinitely large space ?
Because infinity is not a number. It is beyond numbers. Matter/energy/space cannot be a quantity that isn't a number. Material things are measurable. Infinity only exists conceptually(like in numbers). Kaku backs me up on this and so does logic.
>>If something is not explainable by logic, then it is simply illogical or unknown. And unknown really means unknown at the moment.
No it is UNKNOWABLE. Why? because it is outside of logic. How the universe came about is not a logical puzzle, as I explained in my opening post there are only two theories of how the universe came about and neither is logical.
Magic is the word I use but illogical will do if you want. They mean the same thing.