:-”
Clearly, the only idea here that could remotely/possibly be true is the last one.
The others are just too far fetched!
But the last one, the pre-concordenax things, that’s got a serious ring of plausibility to it.
After all, isn’t every SF/Fantasy story better with Time Travel?
I mean think how boring Dr Who would be without time travel? It would just be a nutter living in a police box!