AI Bubble Bursts in China, Wiping $480 Billion: Is America Next?

Computer systems that perform tasks that normally require human intelligence, such as understanding language, recognising images or making decisions.

AI is changing work, media and public services, raising questions about jobs, safety and regulation.

A public company's report of its revenue, profit and outlook for a three-month period.

Results show how a business is really doing and often move its share price sharply.