the timeline they are coming from did not also recieve them as a time travelling visitor.
this is the solution to the grandfather paradox. you obviously don't come from a timeline in which your grandfather was killed.
but there are so many timelines, its not necessarily a big deal to not be exact. they can give glimpses of a future that is similar aside from minute differences.
and no i'm not sure how Q gets info, but i sure aint ruling out time travel.
if i may nitpick...
time travellers give you the history of a future.
the timeline they are coming from did not also recieve them as a time travelling visitor.
this is the solution to the grandfather paradox. you obviously don't come from a timeline in which your grandfather was killed.
but there are so many timelines, its not necessarily a big deal to not be exact. they can give glimpses of a future that is similar aside from minute differences.
and no i'm not sure how Q gets info, but i sure aint ruling out time travel.
https://qalerts.app/?q=TIME+TRAVEL+IS+FUN