But with infinite scroll, how does the "flipping between 1 column and 2 columns on the go" work? Do we read down the left column and then go up to the right? An

But with infinite scroll, how does the "flipping between 1 column and 2 columns on the go" work? Do we read down the left column and then go up to the right? And how do we know where we are if we switch back to 1 column. Of course, we can simply drop the facility to switch but I am curious if the two can work together in a usable way.