Why do you like building universes?

Question: Why do you like building universes?
- Keywords:
  digital,
  technology,
  universe,
  work
Asked by Bendascientist to Julian on 13 Nov 2014. This question was also asked by Meadow.
- Julian Onions answered on 13 Nov 2014:
  
  I think its interesting to see how good our understanding of physics is, and by putting all the knowledge into a computer and letting it see what it comes up with is interesting.
  Plus I get to play with some huge computers.

Question: Why do you like building universes?