After a wobble on the tech-heavy Nasdaq, some AI market observers think a reassessment of the potential value of various businesses may be under way Get our breaking news email , free app or daily news podcast The world is holding its breath as it waits to find out whether this year’s estimated $US1tn investment in artificial intelligence is resting on a castle made of sand.

Also readGooglebook review: Google’s new laptops are woefully underbaked

Last week, the Nasdaq 100 – an index of the 100 biggest non-financial stocks on the American tech-heavy Nasdaq exchange – dropped by 5.5%, triggering the usual angst that the AI boom is about to go bust. Continue reading...

Also readHollywood AI-listers: is the technology ready to rival flesh-and-blood film stars?