I also thought so when I joined in may 2017 to all this movement and eventually saw the fall of Bitcoin and a significant drawdown of his Deposit. At least that's what I thought at the time.
In fact, if you made a deposit in May 2017, then you had the opportunity to make some correction in your deposits before the fall of the market in 2018. Although no one expected a bad development of events.
People always hope for the good, but never expect the worse. With investments, a bit different and most began to invest when the cryptocurrency rose to its high marks.