Elon Musk warned employees about the "difficult economic climate"

In his letter to Twitter employees, Musk noted that the launch of more expensive Twitter Blue subscriptions will allow the company to "survive the coming economic downturn."

The problems for the social network are just beginning; Musk is preparing to deal with them. The vast majority of advertisers have suspended their ad spending on Twitter since Musk "took over."

"We need about half of our revenue to come from subscriptions," the billionaire reported.