Investors are more likely to manage their money and time wisely when investing in something as valuable as Bitcoin. Therefore, investors are more likely to be bold in buying Bitcoin without timing their purchase, as buying for long-term holding should be easier than buying for short-term gains. But for those with a lot of money and the opportunity to buy at a low price, I think it's a great idea to immediately use all of that money to buy Bitcoin, as such opportunities may not be available to everyone. Although everyone saw the opportunity unfolding before their eyes, each person's courage in buying Bitcoin all at once was always different.
If you have a lot, it is quite effective to buy a lot of Bitcoin when a decline is occurring to accumulate assets for the future, but we never know at what point the lowest price of Bitcoin will be in the near future, so I think still using the DCA method is the wisest decision regardless of the price of Bitcoin, but when it is time to enter, he must buy at any price, if it continues to be done consistently, in the future there will be quite a lot of profit to be gained, especially if you buy on a large scale.