Mainly, I'm just sending a message across Time - for something to do, while I'm stranded in another dimension, to make me feel less alone. Not trying to change anything in your dimension - the one I came from. Hoping to find my way back somehow, but I know that's next to impossible. Keeanu Reeves is a good guy. I thought everyone knew he was a time traveller. Didn't you see Bill and Ted's excellent adventure? The Matrix?
Michael J Fox is another one. So was Elvis Presley. Also Bernie Sanders. And Melanie Trump.