Snap bolts Iron Man onto $2,195 glasses with four hours of battery. The waveguides are real engineering. The "honorary CXO" is the actual product: a celebrity renting credibility to pre-orders.
https://www.moneycontrol.com/science/2-processors-and-a-7-millisecond-latency-how-robert-downey-jr-s-specs-ar-glasses-work-science-explained-article-14059226.html