The first thing you learn when you spend too long around Bitcoin is that everyone has a chart that “always works”, and everyone has a scar from the last time it didn’t. This week’s chart is making the rounds again, it’s the one that tracks Bitfinex margin longs, and it’s flashing a familiar change in […] The post Last time these whales did this Bitcoin surged to new highs but key data suggests messy weeks ahead appeared first on CryptoSlate.