These computers that run off of light along with quantum computers, might actually be a reality for the any person to purchase not 10 years from now, but 20 years from now or 30 years from now.
IBM from what I last read has successfully developed not to long ago a quantum computer that works exactly like they wanted. Data transmitted through crystal photonics is what I read.
This computer seems to also be manufactured in cooperation with IBM and Intel it seems and it also uses light photonics instead of crystal photonics like quantum computers.
These light based computers will not only be 1 million times faster than any electronics we have today, but 1 million times more powerful. At least from what I read. As well as being more energy efficient than ever before.
Nvidia also talked a lot about how with having more powerful technology than ever before that we can find cures for all cancers and diseases faster than ever before. Nvidia has a cancer talk somewhere.