I think everyone else has already said this, but it took me a minute to understand what was going on, but from that point on it was a cool game to play.
I really like how you can see the future, but then go in it when you use the keys, it's like having foresight into what's going to happen next. I think there are lots of possibilities to expand this game.
One comment is that I wish there was a way to cancel your time travel, sometimes you go into the future, realise there's nothing to do, and have to wait to be flung back into the present. Oh, also I kept getting stuck and having to refresh until I realized r restarted.
Really cool game overall!