your comment is exactly what I’ve wondered for years....thanks.
still, it seems maybe worth the risk of trying (once Israel finishes its time-travel technology)
I have to respectfully disagree. To paraphrase Spider Robinson, we can only hope that a culture with the intelligence to develop time travel would also have the wisdom not to use it. (Although, based in my geekly background, I suspect that any mathematical theory of time travel that could result in a practical device would also suggest how tolerant time is to modification, and the consequences thereof.)