What an interesting conversation. <br>Mr Rees has such an obvious love and excitement for his subject and he is a very good communicator. <br>At 25 minutes in he mentions a time when the Universe was 1 nano second old and possibly the size of our Solar System. Oh mind blowing! <br>That immediately made me wonder if that location in the universe could ever be discovered? Will we ever get to a point in our understanding when we can point into the night sky and say "it all started over there"?,(reply>), That is a question I have wondered myself. Our current understanding is that, the Big Bang was not a point in space but a point in time. There is no point in space you can point to as the beginning of everything. So in a way, it started everywhere.