>essentially 1 person per step For this to be true, everyone would have to be perfectly synchronized, up to which foot they were currently lifting, so that the

>essentially 1 person per step For this to be true, everyone would have to be perfectly synchronized, up to which foot they were currently lifting, so that the foot could go precisely into the space left by the person ahead, landing next to their other foot. If this is what's done, I'd like to see a video of it.