As China buys all these crappy cars, we should be riding things like this. Counterbalance.

Where we said, oh, what if you add some of this or some of that to an equilibrium reaction.

Oh, well, the seacocks are the valves to drain out the boat, and they're always kept tight closed when you're afloat.

So, we have a little carpet that you can look at your amount of postural sway, and look at the changes in your postural sway over many months.