At this point I'm starting to think that Musk has some weird kink where he gets off on people thinking he's a complete idiot. I can't imagine how somebody can make so many bad decisions in a row. I just imagine him locked in his office just getting his jollies from the collective internet making fun of him.
Rebranding isn’t a bad idea tbf, but rebranding to x? Man call it xXgiga420socialmediaXx if you really want to be edgy and annoying. A more fair rebrand without jabs would probably be Bell or something since his other company Tesla is named after obviously the scientist
Rebranding Twitter is a terrible idea. The whole branding is so embedded in culture as both a thing and a verb that the whole company's value is the brand.
Some rebranding is a good idea, but this one is terrible.
This is coming from someone who always disliked Twitter, but can acknowledge it was successful for what it intended to be.
It's just a blackboard bold letter from mathematical typography. Variables written in blackboard bold are often used to stand for sets, spaces, etc. — e.g. ℤ for the set of integers or ℚ for the set of rational numbers.
In addition to it just being a unicode char, as others have said, it's also close enough the X.org logo that I'm guessing lawyers are already racking up billable hours.