My dreams are always full of jump cuts, but I've never before been able to control them. Now I want to try this when I'm lucid ...

I remember there's an app on my phone that saves snapshots in time and lets me go back to them. I quickly pull it up and hit the Back button. With a sound like a timebug in World of Goo, I'm back at the last light, going through it. I know this is too late - I'm about to get stuck on the turn lane - so I hit the button again. Now I'm at the previous light, and I have time to switch lanes before I get stuck.

I'm really excited about this. If I can rewind time yet still remember everything that happened, the possibilities are endless! I can read all the books I want, then rewind time so that the reading took no time at all! I can spend a long time solving a difficult problem, then rewind time and remember the solution. I try to think if there's a way to bring something back with me, a completed piece of work, but I don't know how that could be done. Maybe there's a way to time-proof a USB stick? I start to think about sleep - surely being awake for a long time would take its toll? - but then I reason I can sleep whenever and then rewind time to before I slept.