In a nano second?
You do know that as a general rule, the faster things go (where friction is involved) the more heat is generated, don't you?
Mountains rising at 'a nano second' would most likely boil off much of the surrounding matter in... well, probably nano seconds.
Seriously, this is material physics that you should know already.
Kids know this.
The above ontological example models the zero premise to BB theory. It does so by applying the relative uniformity assumption that the alleged zero event eventually ontologically progressed from the compressed alleged sub-microscopic chaos to bloom/expand into all of the present observable order, more than it models the Biblical record evidence for the existence of Jehovah, the maximal Biblical god designer.
-Attributed to Buzsaw Message 53
Moreover that view is a blatantly anti-relativistic one. I'm rather inclined to think that space being relative to time and time relative to location should make such a naive hankering to pin-point an ultimate origin of anything, an aspiration that is not even wrong.
Well, Larni, let's say I much better know what I don't want to say than how exactly say what I do.