HMM: A Physicist Came Up With Math That Shows ‘Paradox-Free’ Time Travel Is Plausible. “Try as you might to create a paradox, the events will always adjust themselves, to avoid any inconsistency.”

The notion that timelines tend to heal themselves is the source of one strand of time-travel fiction, and now there’s some evidence that it may be right.

I’m not entirely convinced, however, that this undercuts Niven’s Law of Time Travel.