I would say nay to the sci fi-style, physically travel in time, heck if that was possible, I'm sure all of us would be traveling back to prevent every atrocity that's taken place, and anyone can fill in the blanks as to what atrocity they'd go back and prevent, we'd still have the Twin Towers in NYC, or even be living in a Hitlerian victory-world.
However I have no doubt that there people back in the day had the ability to see the future given how advanced certain figures were. I don't doubt that "some" involvement of a time period outside of the norm was involved, even if it didn't involve any sci-fi shit.
But I'm no genius on the technology of those time periods, so I'm not gonna automatically claim that the "laptop" is or isn't a laptop. The only thing I note is...that's quite an unusual way to show someone a book. That's my only comment, no more, no less.
Both the Gods and enemy E.T.s have been interacting with humans, and UFOs showed up in many ancient, medieval and renaissance paintings, and were indeed in reality - UFOs and not just us mentally claiming them to be UFOs, so honestly, who knows at this point whether either side was showing people future technology, or even attempting to have technologies back in the day or truly is up to our own mental perception of "phone poses" and etc.
It's best to have someone advanced take it up with the Gods as to what's going on.