[alcio]

On one slide, there's a mention that in 2300, computers will have 10^60 elements in them.

However, there's only 10^50 atoms on Earth.

[eequah9L]

It's even worse. That slide compares number of computer elements vs. number of cells in human brain. The graph starts at 1x the amount (CPU == brain), and ends 10^60x the amount.

[goldenkey]

You are forgetting that atoms mean nothing. It's about the hamiltonian, action, energy. There is no reason that you cannot use a shit ton of photons in flux with mirrored logic gates. You can pretty much create as many low frequency bosons you want... Remember relay lines as RAM? Electrons were used. Expensive compared to a lower energy particle like a photon. Photon relay lines :-)