Concerning this question:
Possible trajectories with time travel
I see currently four close votes, casted before the OP's latest edit, which was made with the intention to make the question more focussed. Still it got only one reopen vote (yes, mine).
Can the close-voters (or maybe some other community member) please be so kind and tell the OP about their expectations, how this question can be "made focussed enough" for SE.SE, in case they think it is still not? Or, in case they (or other community members) think the edit was sufficient, would you be so kind and vote for reopening?