Does it require serious research? I am not trying to be difficult but I have seen write ups on basic hand gesture tracking from 5+ years ago.

Depends how you define “serious”.

I am defining “serious for a consumer product company”. Putting that in a small device seems quite a feat.

If you define “serious” as “particles colliding” or “drugs that cure some type of cancer”, then no.

Keep in mind that I am using “serious” as opposed to “scammy”. I thin this pin is far from a scam.

Thats fair. I guess I am biased with one of the initial story that described the genesis of the product during a cliff top retreat on Benioff's property. All the hype, the demonstrations, but the actual product falls flat of any real functionality. There is a disconnect between the hype they sold and what they released. That is scam territory.

I remember my buddy casually controlling the volume in his car by rotating the index finger cw/ccw with his hand on a gearbox handle. It was round 6-7 years ago. Nothing projected on his hand though, as it was all projected on a windshield, only visible to him. BMW 7, iirc.