Since I see a lot of people posting that there is no legitimate use case for Bitcoin, let me point out that the global remittance market is over $500 billion per year. Being able to cheaply and easily move money between countries is a huge need, and bitcoin is good at that. This isn't even touching grey-area financial services like evading capital controls, routing around artificially pegged currencies (ie what's happening Argentina), etc. This isn't to say that there isn't a big ugly correction coming, but it's not accurate to say that Bitcoin has no value/purpose.