A finance writer’s dystopian 2028 thought experiment argues that AI will soon take over in dramatic ways.

Citrini Research’s post on AI risks appears to have sparked a stock selloff.

Publishing platform Substack and prediction market Polymarket announced a new partnership on Wednesday. The new partnership will allow Substack users to integrate Polymarket’s prediction data directly ...

Journalism is better when it’s backed by live markets,” Polymarket’s X account said in a post announcing the deal.

The 43rd president of the United States launched a Substack site Feb. 16 with a 1,500-word tribute to a predecessor.

In recent years, social media has become increasingly important in everyday life. Phenomena like “doom scrolling” have been ...