CNBC host Jim Cramer is once again sounding alarms about cryptocurrencies, urging investors to pull their money from digital assets and focus on stocks instead.For years, Cramer has oscillated between calling Bitcoin a great alternative investment and warning that it is worthless. However, his timing has often aligned suspiciously with market turning points. Each time he publicly declared crypto dead, Bitcoin (CRYPTO: BTC) and other assets rebounded not long after.This recurring pattern has become so well-k ...