Quote:The compression of the nuclear material is, in one sense, a cause.
So what is the initial cause of the chain reaction? the man in a bunker several miles away with his finger on the button?
Quote:that compression exists for one reason, to bring together enough nuclear material to reach critical mass, after which the laws of physics take over. It is the laws of physics acting on that critical mass which results in the atomic fireball.
I already stated that the initial explosion was the cause of the compression. Are you saying that the laws of physics are the initial cause of everything? Whatever you see as the initial cause of fusion/fission, it obviously isn't greater than the end effect otherwise it would be pointless as a weapon.