Maybe I have mistaken you for a troll, but your behavior and recent posts on this community say otherwise as they are low-effort and look like bait. Asking questions is always a good thing, I don’t want to discourage you from that. Though you should keep the hypothetical, unrealistic ones in your head as they are contributing nothing here and only waste other people’s time.
It seems you are just young and naive judging from your profile picture, so here’s some advice:
Post less, and research/read more before asking anything. It’ll make you grow faster, not only as a developer, but it also teaches you to think things through better and so you can learn things easily in the future. (RTFM anyone?)
Throwback to Microsoft’s pre-Kinect project dubbed Xbox ‘Natal’ way back in the day.
Being younger, I—along with many—really thought that was the close future of gaming. In hindsight, of course it was all fabricated.
I’m not surprised by Google’s Gemini demo video either. The way that which the whole demo was narrated and played out made it seem too linear, too perfect.