This is a perfect idea, finally completely different and with completely different visuals. But - it would be nice if the game started where the current version ends. The preview into two times at once and into how current avtions changes the future while the past continuously changes (read: something moves in the past) is insufficiently (visually) explained. Maybe I'm a little afraid that in the current state it's difficult for a some to figure out what's going on - the cart just moves, whats the point?
I miss some building (I plant a tree, the tree grouw, dies and its stump that can be cuted down to created a bridge) or influencing the environment (I pour acid somewhere and it will etch a hole in years), etc. The potential is massive. And i want to see it all!