Someone's paying strangers $1 to record videos of their hands moving

And you know what? A use case that we are so excited about right now is someone is paying a dollar. We don't know who this is, but to have people record a video of their hand going like this. Right? And then send it back. And so what is that for? What?

What could that be?

This feels like some mission impossible plot or something. It's a biometric or maybe they're building a robot. Maybe it's Elon for optimists. They're trying to figure out, like, the average hand. Trying to get the hand. Trying to yeah. I don't know. So likely, it's it's for training a video model. Right? Because what like, these complex hand motions,