GPT-5.4 Pro cracked a conjecture in number theory that had stumped generations of mathematicians, using a proof strategy that ...

Robert Kelly is managing director of XTS Energy LLC, and has more than three decades of experience as a business executive. He is a professor of economics and has raised more than $4.5 billion in ...

Sam covers personal finance topics, from the best savings rates to the reasons mortgage lenders say no. He enjoys crunching the numbers to help consumers get ahead. A house survey is an expert ...

The story so far: On December 1, India assumed the presidency of the G20 forum, taking over from Indonesia. Prime Minister Narendra Modi called it a “huge opportunity for India”. “India must utilise ...