anyone buying when the BTC price is going up should understand that it could dip and they might be buying at the top, and they could get stuck in a downwards price spiral, and that is part of the chances that they are taking in regards to when they decided to begin their bitcoin investment journey.
This short term investors in my opinion are the reason we always have those massive dip season , all buy when it is pumping and sell when they see little dip causing more panic for new long-term investors and this is why new investors must always know that there will be a dip , it is just corrections and we will be back stronger so there's no need to panic when the time comes , 48k to 70k was a good example.
since we can not easily predict Bitcoin movement ,then DCA should not dissapoint although, using the "lump sum" could be beneficial attimes, it can still be used in form of DCAing all that matter is patience to see the result yield.
One other thing that help new investors to move fast in their Bitcoin accumulation journey is the aspect applications of excess cash flow for an investors advantage, some of the Bitcoin investors who have excess cash flow easily lose the patients to wait for the price to drop at low before buying, because they are carried away by the available resources in their hands and instead waiting for correction they jump on the market regardless weather Bitcoin is at all time at that moment, this practice have lead to a lot of loses in the past, and some of such investor wont have the patient to wait for recovery tge also cash out at lose because of the frustration and fomo around them, is very important to learn how to use cash flow to our advantage and not being under pressure to buy Bitcoin at whatever price just because we have available fund's to do so.
This is why I have only focused on long-term investment goal to secure my future when I am old. Bitcoin long-term investors are winners because they have taken their time to sacrifice and build wealth for themselves through discipline on regular buying bitcoin persistently and consistently over time. In the future traders will say long term investors were lucky to buy bitcoin cheap. Forgetting that they both had the same opportunities now to hodli till then.