I prefer to buy in directly after each hit because if it's cheaper than before there is an advantage. The double digit fall yesterday was an ideal opportunity in my point of view but i'm already invested. I have no magic crystal ball therefore i invest stubborn with corrections or crashes because i think long term.

That could be combined with cost average investing, means you buy cryptocurrencies with defined savings plan by you, for example monthly. That's complete emotionless and you take the highs and also the lows of the market. The advantage is that you get a average price and be not completely "wrong" and buy in with all your money at a all time high ($5,000 Bitcoin) and then have to wait maybe years before see any gain.

Derived strategy is also the "King's strategy" in stocks where you invest in the leaders of the market where you think they have a moat and a long term growth potential (maybe 20% each year for ten years, less or more) and if they are hit by bad news and take a correction by 10 or 20% then you invest in steps in the downfall. If you're often driven by emotions that can be a hard time to do so, therefore it's called King's strategy. Each time they reach a new low from the base price (-10%, -20, -30%,..) you set you invest the same amount of money until they reach the bottom. That's also cost averaging because in you don't know exactly when the crash is over, but you're constantly adding up at low prices.

To be honest i'm personally invest often at once if i see a opportunity and wait until i think it's the right time. But the DCA method worked for many because you have a clear rule based strategy without any emotions and that can be valuable in times of FUD like now.

Thank you for impulse to write about!