Musk teases X.com social media platform if Twitter deal's a no-go

In 1999, Musk co-founded an online financial services company with the same name alongside three other people. X.com merged in 2000 with Confinity, which developed the PayPal electronic payment system. The tweet exchange comes as Musk battles Twitter in court over the Tesla CEO's attempt to pull out of a deal to buy the social media company.