A reasonable guess would be that their key innovation is actually just lowering the cost of the heliostat system with more complicated software. Traditional hel

A reasonable guess would be that their key innovation is actually just lowering the cost of the heliostat system with more complicated software. Traditional heliostats do exactly what you suggest, but it takes a lot of expensive installation, calibration, stiff mechanical structures, precision motors, etc. to make the real world behave like the math. If I had to guess, they are instead mounting a camera at the focal point (plus probably one to each side) and using pretty standard computer vision techniques to measure whether each mirror is pointed correctly. Translating "pretty standard computer vision" into "AI" is just a play for investors and headlines, but taking advantage of a couple cheap cameras to measure and control hundreds of mirrors is a novel and significant advancement.