Searle argues that even if a computer could pass the Turing test, it would not necessarily mean that the computer actually understands the language it is using. This is because the computer would simply be following a set of rules, and would not have any real understanding of the meaning of the words it is using.

The Turing test is a test of a machine's ability to exhibit intelligent behavior that is indistinguishable from that of a human. The test is named after Alan Turing, who proposed it in 1950.

Searle argues that a computer could pass the Turing test without actually understanding the language it is using. This is because the computer would simply be following a set of rules, and would not have any real understanding of the meaning of the words it is using.

Searle's thought experiment is called the Chinese Room Argument. In this experiment, Searle imagines himself in a room, following a set of rules to translate Chinese characters into English characters. Searle argues that even if he could perfectly follow the rules, he would not actually understand the meaning of the Chinese characters.

Searle concludes from his thought experiment that a computer can never understand a language. This is because a computer would simply be following a set of rules, and would not have any real understanding of the meaning of the words it is using.