Dhaka, Nov. 10 -- Nvidia CEO Jensen Huang is drawing both sympathy and disbelief in his birthplace, Taiwan, where he has rock star status, after dramatic revelations of his affair with a woman who could have been a Chinese spy.

Whenever he visits, adoring fans and excited reporters follow, hanging on every word from the most prolific salesman of the AI boom, in a trend domestic media call "Jensanity".

Shock at the news that both Nvidia's board and the FBI are investigating whether a foreign intelligence effort targeted Huang is palpable in the small Taipei businesses and restaurants he frequents on trips.

"I thought it must be a lie, or fake news," said Hsiao Kui-yu, whose store selling dried and candied fruit is among Huang's inevitab...