Catastrophe
"Science begets knowledge, opinion ignorance.
This is my first post and I have only just arrived here and not had time to read the mammoth amount in all threads so please excuse me if I am duplicating anything already here.
I am rather concerned when referring to the Big Bang as space-time seems to be forgotten and all the talk is about BEFORE this and INTO that as if referring to the SPACE and TIME we have previously viewed separately.
A related point is that I understand (maybe wrongly) that the idea of the BB arose by extrapolating backwards (in time) the expansion of the Universe (forwards in time). Why is it assumed that this extrapolating must be linear all the way to zero 'time' i.e. the BB. Is our physics so solid that it cannot change near the BB to 'smooth' into a curved approach near 'zero time'? Of course this might allow a smoothing out 'on the other side' linking to the known idea that a black hole in one 'system' might lead to a Big Bang in another. I use the word 'system' to avoid confusion with the word 'Universe'.
That's all for the moment, except thanks for being here and to the providers of this board. Best wishes to you all.
Cat (short for Catastrophe obviously, and hoping it is not already in use, in which case, of course, I won't use it again).
I am rather concerned when referring to the Big Bang as space-time seems to be forgotten and all the talk is about BEFORE this and INTO that as if referring to the SPACE and TIME we have previously viewed separately.
A related point is that I understand (maybe wrongly) that the idea of the BB arose by extrapolating backwards (in time) the expansion of the Universe (forwards in time). Why is it assumed that this extrapolating must be linear all the way to zero 'time' i.e. the BB. Is our physics so solid that it cannot change near the BB to 'smooth' into a curved approach near 'zero time'? Of course this might allow a smoothing out 'on the other side' linking to the known idea that a black hole in one 'system' might lead to a Big Bang in another. I use the word 'system' to avoid confusion with the word 'Universe'.
That's all for the moment, except thanks for being here and to the providers of this board. Best wishes to you all.
Cat (short for Catastrophe obviously, and hoping it is not already in use, in which case, of course, I won't use it again).