<br />FD...<br /><br />The typical Big Bang model is effectively a unit of one at time t=0. This means that even time goes undefined since space-time is effectively one unit. If you favor a chaotic or perpetual inflation model, then the Big Bang is just one of many expanding spheres in a sort of space-time “foam.” But the issue in this model is that you can never get information from outside the sphere in which you live. <br /><br />Cosmologists are able to piece together events back to about one Planck time, or 10^-43 second. After that it is more a guess for theologians and metaphysics than science. The period before 10^-43 second is so unstable that there may never be any detectable trace that we can piece together a hypothesis. In a sense, all signal from that time is lost, and not even the noise can help us. There is no information of any sort from the time prior to Planck time.<br /><br />--A3K