Some say that presentism precludes time travel into the past since it implies the nonexistence of a past to travel to, but this is a bad argument. Presentism says that only currently existing entities exist, and the only properties and relations those entities instantiate are those they currently instantiate. This does in a sense imply the nonexistence of a past to travel to. But if that precluded time travel into the past, it would also preclude the ordinary, one-second-per-second, “time travel” into the future that is ordinary persistence...
