basically the whole checkpoint list applies to the past 8 years of crypto history. there may be a "crash" coming and people may jump out of windows, but thats how the world works. People kill themselves over a lost football match. In the long run there is scope for strong growth. You shouldn't compare cryptos to tulips based on a price chart. Tulips are fundamentally different in the fact that they don't do shit while ctypto brings technology to the game that has potential use. My advice, just don't go all in at ATH, invest periodically. That applies to any type of market if your strategy is long.