Happy to. Grant Cameron is one of my goto reseachers. He’s well respected and in contact with a lot of insiders.

Michael Masters talks a lot about people coming from the future to visit if looking for more on that. Very well credentialed but talks like a stoner buddy. :)

I have no real opinion here. We are hurtling through space at an alarming rate so time travel implies space travel but I guess if you can do the first, the second is trivial in that space might be a construct we have misunderstood (e.g. space travel does not require point a to point b movement over time, could be instant).