Butterfly Effect FAQ
A guide for time travelers looking to avoid catastrophic consequences of small actions.
Q: Will changing a single butterfly in pre-Butterfly Effect era cause a catastrophe?
A: Probably not. Unless you're a butterfly of discerning taste, in which case, yes.
But seriously, the odds are against you. Don't try this at home (or in the past).
For more information on Butterfly Effect mitigation, see Minimizing Consequentialism
If you still want to try, see Time Traveler Tales for cautionary stories of what not to do.