Is There a Time Warp?

I had that as a blog idea because of the change set stuff, which essentially creates, creates what's going to happen before it happens. And then you apply the change set. So with undoing, which I have recently redone, was thinking about changing its name to Time Warp, the undo system. But one thing that I tweaked and added is that the concept of checkpoints,. Like every node would be like an undo operation. so I just introduced this idea of doing a checkpoint. How many levels deep can I go on the left and the nav? Oh, the infinite. Infinite as much as you want.