According to Musk, the company will only have room for employees who put in long hours.

To succeed in an increasingly competitive world, we will need to be extremely hard core. Working long hours at high intensity will be the result. In an email to employees, Musk said that only exceptional performance would make a passing grade.

According to the note, those who want to work normal hours can leave the company with three months' pay.

The ultimatum and demanding tone contrasted with Musk's own performance at Twitter, which is exceptional mostly for the sheer volume and severity of disasters there since he took the reins last month.

Mass layoffs spurred a class-action lawsuit. Within days of assuming leadership, he promoted a conspiracy theory. The security protocols have become disorganized. His improvised-in-real-time system to crack down on fake accounts has led to a wave of impersonation, seeding confusion over everything from the price of insulin to whether former President George W. Bush misses killing Iraqis.

Musk has remained fixated on the platform, sharing inane thoughts aboutpopulation collapse, arguing with a critical employee that he later fired, and at times seeming to base key decisions on interactions with users. On a call with employees last week, Musk said that he might have to file for bankruptcy next year.

The new boss wrote in an email that the company will become much more engineering driven.

Musk said that the company is a software and server company at its core.

There is no revenue earned from software or server. The company works like a publisher, attracting users who share their thoughts and reading those of others on the platform, then charging advertisers to reach that audience.

Since taking over, Musk has said that he will prioritize boosting the company's subscription revenue by charging for the blue check marks that are used to verify some users' identities.

It's a hallmark of the publishing industry to guilt readers into paying more for services.

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