On: An all-optical general-purpose CPU and optical com...

[thfuran]

Are you talking 3 actual nanometers or a "3nm" process? It's difficult to compare.

[p1esk → thfuran]

Also, I remember when 20 years ago people said building transistors smaller than 45nm will be impossible.

[aj7 → p1esk]

I think the wavelength of light is a physical brick wall.