Like a jingle giving him a terrible tingle, the single fact about the awful act is there's no way to detract or retract from it--he's unable to undo what's done. He thinks if going back in time gave the traveller the ability to avoid an act then all that follows in regards to the fact will no longer be intact. Timmy thinks about this a lot, and really wishes that if he can change one thing in his life, it's this. So many bad things happen after the fact and it all stems from that one act.

A Memoir - A Trilogy; Part I: If you could change one thing; Part II: Bind Nothing; Part III: Closure