In the giant Hadron Collider scientists are currently trying to replicate the Big Bang. New molecules are being designed and tested for the latest biodrugs on computers. Computer simulation models can predict almost any known sub atomic behaviiou now. And since an atomic explosion (for peaceful purposes) is way of containing a sub atomic implosion and then being able to redirect the energy from that implosion in a controlled way, why would we need to explode a nuclear device to create the technology ? Give a computer enough data and it will be able to predict the probabilities far more accurately than a crude activity like live nuclear blast, where the conditions can never be completely controlled. So why all this posturing on prohibiting Nuclear testing – the weapons of the future will in any case be developed as complex computer models.