The question is still open

In 1950, Turing made a prediction: by the year 2000, a machine might be able to fool an average interrogator about 30 percent of the time after five minutes of conversation.

He was roughly right. But when machines eventually became good enough to fool some judges, people did not conclude that the machines were thinking. They argued about the test instead. The goalposts moved.

Turing anticipated that too. In the same paper, he described what he called the : the persistent claim that machines can never really do certain things, like use language properly, learn from experience, or produce something genuinely new. Each time a machine clears one of those bars, the bar gets raised.

The question he asked in 1950 is still open. Every serious answer so far has turned into a new question.