Meta’s new personal AI agent, Muse, gives Mark Zuckerberg another chance to build the kind of technology platform he has chased for years.

Muse jumped to the top of the App Store last week and remained the most downloaded free app on Monday, beating ChatGPT.

If enough people use Muse as their main way to get things done online, developers could flock to the nascent platform, and businesses may have little choice but to engage with it.

Meta surged 11% on Monday, getting the stock within striking distance of a record it hit last summer. Investors appear to be betting the company has found a new way to sit between consumers and the businesses…