So somewhere there is an edge to the universe. What's on the other side, dad?
Simple...
Try this out on him, two options:
1) The infinite void.
2) Whatever we decide to create there.
3) The big bang concept is totally wrong and something else entirely is going on. (which does not really exclude option two... human observation of the universe is currently limited to the speed of light, therefore it is natural that we perceive the universe as some kind of expanding sphere with us at the center... As long as we limit ourselves to the observation of electromagnetic energy we simply cannot possibly know the true nature of the universe) OK, three options.
While option two is more fun to contemplate, it is complicated by the fact that once we have created something there then it is no longer beyond the edge of the universe is it? (As Soliton has described one possible case of above.)
The universe is currently bounded only by human conception, this is the awesome power we have, I can only dream that one day its potential is truly realised.
However, the universe of the self must be leveraged correctly to gain a proper perspective on the extracorporeal universe. Which is not nearly as simple as it sounds and is likely the current true limit on our universe.
Sounds like a great kid there Diz.
"Not only is the universe stranger than we imagine, it is what we imagine." - Bonk
http://en.wikipedia.org/wiki/Anthropic_principlehttp://www.amazon.com/gp/product/0192821474/