A version of this article originally appeared in Quartz’s Need to Know: Davos newsletter. To get updates on the World Economic Forum delivered straight to your inbox all week, sign up here.

The tech billionaires have a rocky history, and Musk's comments about funding for the project, which could attract $500 billion prompted a pointed response from OpenAI leader Altman.

Davos newsletter! President Donald Trump’s virtual visit to Davos today laid out his vision for Trump 2.0. Here are some highlights: AI Infrastructure investment: Trump touted the $500B “Stargate” ...