[hvidgaard]

If efficiency is vastly improved, we can stack the layers and increase frequency by quite a bit. Even if the processor becomes a 10cm x 10cm x 10cm cube, it's okay as a proof of concept.

It's an interesting approach to overcome the inherient limitations of electron based circuits.

[TTPrograms]

Again, right now 1 in 100 photons will interact with an optical switch. This effect multiplies with each level of transistors. This means you have to "run" your circuit potentially something like 10^100 times to get all of the transistors in your path to work on the same photon.

That's pretty rough.