Dunno about this fragment, but in general in 60s he usually wrote about AI as "cybernetic electronic brain" or "cybernetic black boxes". Cybernetic in the old sense - not the cyberpunk implants, but the analog devices with feedback loops.

He wrote A LOT about this and explored various consequences, including the simulation argument which he presented in 1960 as a short story "Strange chests of professor Corcoran" - https://przekroj.org/sztuka-opowiesci/dziwne-skrzynie-profes... here's the Polish version).