Nice article!!!   I like this excerpt. 

Celestial AI is operating in stealth mode, and its founders couldn’t describe the design or abilities of its machine learning chip. But the company’s founders feel confident that hybrid photonics can restore the explosive computational growth society has come to expect.

“It can have the same exponential pace of improvement generation over generation that we have historically enjoyed with Moore’s Law,” says Michelle Tomasko, one of Celestial AI’s co-founders and its head of software. “We start at a big pop and go exponential from there.”