In 1989, Penrose picked up Lucas' 1961 argument that no computer can possibly simulate intelligence. The argument rests on fundamental misunderstandings of logic, that are well-known among logicians. See, for example, https://www.ams.org/journals/bull/1995-32-03/S0273-0979-1995... for an article explaining this, written some 30 years ago.
The fact that Penrose has maintained his misunderstandings for 30 years, demonstrates that, on this topic, he has been a crank for a long time. No matter his other accomplishments.
The fact that Penrose has maintained his misunderstandings for 30 years, demonstrates that, on this topic, he has been a crank for a long time. No matter his other accomplishments.