For most people, DCA is enough to survive this crypto winter, but if you want to invest a lot of money in bitcoin, then I think it's better to wait until the signal we talked about.
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Many people buy Bitcoin out of greed and expect big profits in a short time. This is due to the fact that the crypto market can experience large price fluctuations in a short period of time. However, it is important to remember that Bitcoin is not an investment instrument that guarantees large profits in a short time.
If you are a long term investor, time is not of the essence as the price of Bitcoin tends to increase in the long term. Agree with your statement analyzing the market or waiting for a signal can help you determine the right time to buy Bitcoin and get the best profit.
Even though DCA and HODL are what most people suggest but I think this DCA is always a good investment strategy to buy and hold Bitcoin in the long term. With DCA, you regularly buy the same amount of Bitcoin over a certain period of time, thereby obtaining a lower average purchase price and reducing risk. With HODL, you hold Bitcoin for the long term and are not affected by day-to-day price fluctuations.
When buying Bitcoin, be sure to do your research first and not put all your money in one price point. Separate your purchases at different price points and make sure that you understand the risks involved in investing in crypto. (I always remember about risks because people sometimes get carried away by the huge profit potential of investing in Bitcoin and other cryptos, and forget about the risks associated with these investments)