'Big Short' investor Michael Burry was an enigma. Now he's an open book.

Michael Burry of "The Big Short" fame is skeptical of the AI boom.

Jim Spellman/Getty Images; Getty Images; Tyler Le/BI

• Michael Burry has shifted from virtual silence to answering endless questions on his Substack.
• The investor of "The Big Short" fame has opened up to subscribers in comments and chat posts.
• He's discussed his investing approach, what stocks he's buying, and even what book he's reading.

"You have a very nice haircut. Did you cut it yourself?"

Michael Burry...