I've been wanting to build something like this. It would be really cool to see all tabs' histories side by side rather than just the current tab. Even though a

I've been wanting to build something like this. It would be really cool to see all tabs' histories side by side rather than just the current tab. Even though a tree gets wide pretty quickly, you're seldom using multiple tabs simultaneously, so if you make line-height a function of time, you shouldn't have too many items on a row.