While I get your point of view, there are times like this that I regret not being active in trading. For instance, I could have sold my BTC at ATH, a few weeks ago, and now I could have obtained a significant amount of BTC, by purchasing, using the exact same amount of money. It's called short-trading, while at the same time, I would continue holding.
You say this cause you are viewing it retrospectively and have seen exactly how the market played out over the past few days, predicting what direction it would take in order to know when to short is not an easy strategy and you would definitely lose out so many times. Everyone is a good trader when they have seen where the market plays out.
On the other hand, there are quite a few things that can go wrong, such as an unexpected price change and so on, however, now I'd definitely have more Bitcoin.
You think so (the highlighted part), because you're viewing the market retrospectively, attempting to predict it before it happens is much more difficult and risky.