TL;DR: The laws of physics seem to prevent us from accidentally erasing our own history through time travel.
What makes you think this? I have some introspective consistency in my memories, but I can’t tell if they’re actually real, or if they’ve been (subjectively) recently changed/implanted or otherwise made to fit the “current” timeline.
What makes you think this? I have some introspective consistency in my memories, but I can’t tell if they’re actually real, or if they’ve been (subjectively) recently changed/implanted or otherwise made to fit the “current” timeline.