[jfoutz]

IMHO, you run into the same problem as journaling. User interaction is basically a stream of deltas. If everything is perfect, it’s awesome. But really, you want checkpoints from time to time.

It’s a cool idea. It’s cooler if your organization has the chops to rarely introduce defects. Replaying on refresh works ok ish. The really cool part is making every interaction with the system uniform. State comes in, small tweak, state goes out.