Incumbents v. revolutionaries

Cognitive psychologist and poet Keith Holyoak explores whether artificial intelligence could ever achieve poetic authenticity.

Ketamine’s remarkable effect bolsters a new theory of mental illness.

The “End of Days” defines how we see time.

A volley of new insights reignites the debate over whether our choices are ever truly our own.

A sober look at a wild conspiracy theory that argues the Middle Ages never happened.