I think Diaspora by Greg Egan covers some of this territory
...that or the much older idea that if the whole universe is the dream of a dragon (or a butterfly or Chuang Chou) then let's not do anything that's too startling or implausible so we don't wake them up and end it all!
...that or the much older idea that if the whole universe is the dream of a dragon (or a butterfly or Chuang Chou) then let's not do anything that's too startling or implausible so we don't wake them up and end it all!