It's possible — unlikely, but possible — that Elon Musk paid for a very large chunk of Twitter with billions of dollars he made investing in dogecoin, a joke cryptocurrency that Musk pumped aggressively in 2021 as it rose sharply in value.
Why it matters: We don't know — and might never know — who Musk's co-investors in Twitter are, and therefore who he's beholden to. We also don't know — and will never know — just how much Musk is worth.