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In this particular case, and given your background, I am not worried about your ability to build it. Yes, a bit easier than fusion energy :)

I am wondering, though... Why don't you make a prototype, and attach a webcam in front of it, with a few sensors, etc?

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For their cheapest model, they want to sell it at $10k which includes profit, but they can't build a single working one before that? Several thousand to build a single functional prototype is a drop in the bucket comparatively. This instills absolutely zero confidence that they could build anything... because well they've apparently built nothing except a preorder website full of mockups.

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