After watching my tech consulting firm collapse during the financial crisis, I spent years intentionally learning what I'd missed.

What Rachel Hunt found instead was an imposing brick convent on the fringes of a small country town, sagging in one corner, empty for decades and demanding an enormous act of courage. It is, even by ...

The math world is losing its mind over the new solution to an Erdős problem. This is what AI found, how we missed it—and why ...