I was thinking the carts would be numbered just like the overhead bins. So the bags would be transferred exactly as you stowed them. Maybe even make the bins

I was thinking the carts would be numbered just like the overhead bins. So the bags would be transferred exactly as you stowed them. Maybe even make the bins detachable so it's just "roll them aboard and snap them in". Though that could be heavy/unsafe/whatever. I think it would unquestionably make boarding more efficient. Though thinking about it more I don't know if it would make it better, since it's now yet another extra thing that you have to do.