He also asserts that modern psychological experiments that cause people to see things that are not there provide grounds for rejecting Descartes' argument, because scientists can describe a person's perceptions better than the person herself can.
On isto naglašava da moderni psihološki eksperimenti koji uzrokuju da ljudi vide stvari koje tamo nisu daju temelj za odbacivanje Descartesova argumenta jer znanstvenici mogu opisati percepcije osobe bolje nego što ona može.