TL;DR: Elon Musk says the algorithm that determines what appears in each user's X feed will be made public within a week – a move he claims will bring transparency to the platform's inner workings.

Social media platform X will open its new algorithm to the public in seven days, Elon Musk said on Saturday, including the code used to decide what posts and advertisements are recommended to users.

If you're a casual-to-obsessed observer of fitness trends, you may have come across “Zone 2” training—heard about it on Huberman Lab, or The Drive with Peter Attia, perhaps. It has become a buzzword ...