If you had the chance to build a time machine but miss a lot a cool new stuff or repeat what you did in science class,

Question: If you had the chance to build a time machine but miss a lot a cool new stuff or repeat what you did in science class, what would you do? why?
- Keywords:
  time machine
Asked by pinkpanda12 to Duncan on 15 Nov 2017.
- Duncan McNicholl answered on 15 Nov 2017:
  
  If I had a time machine I think I’d pop back in time a few years so that I could have a nice chat with my dad, and then I’d come back to the present and smash it. I’ve seen too many sci fi films and TV shows to think that going back in time is a good idea: they always seem to mess things up and make everything worse than it is now.

Question: If you had the chance to build a time machine but miss a lot a cool new stuff or repeat what you did in science class, what would you do? why?