These are different strategies in accumulating Bitcoin. Some investors use DCA strategy, others prefer buying the DIP strategy, while some DCA and also reserves funds to also buy during the DIP and some accumulate with lump-sum (Rich folks). All these approach are decisions made individually with what suits our bitcoin investment goals.
It is not only rich folks that buy bitcoin with the DCA strategy; even a newbie can start his bitcoin investment with a lump-sum strategy in some situations. For instance, if a newbie starts accumulating bitcoin late, he or she can decide to do a lump sum buy on bitcoin to accumulate a good quantity of stash before the bitcoin price is too high, and he or she will continue accumulating bitcoin with the DCA strategy.
Both lump sum and DCA can be done in front-loading kinds of ways in which there is a kind of purposeful attempt to gather more bitcoin towards the beginning of the investment, whether that front loading is with a few lump sum investing or more aggressive DCA, but a person could have a timeline in which s/he is specifically trying to get a certain amount into bitcoin.. for example, he comes to bitcoin with an already investment portfolio of around $200k, he specifically would like to get 15% invested into bitcoin, but he wants to be careful in terms of how he might cash out of other assets that he has, so his target is to get $30k into bitcoin and maybe he wants to do it in 6 months or a year or some other kind of a fairly aggressive timeline, but he also may have some particular aspects in regards to assets that he already holds that he may or may not have flexibility with those other assets.. and so whether he ends up with $230k in his investment portfolio at the end of the investment (with $30k invested into bitcoin) or may he still has an investment portfolio of $200k, and yet he has taken away from some of his other investments in order to allocate the $30k towards bitcoin so in the second scenario he has $170k in other investments, so there can be a variety of ways that someone comes into bitcoin with a kind of front-loading lump summing and/or DCAing technique, and the particular ways that they hold their assets or the goals that they might want to achieve might well have to do with the resources that they already have (and how they are holding their value) at the time that they decide that they are coming into bitcoin.
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I agree with you one can't wait trying to get all the knowledge before investing, me as a newbie I don't have all the knowledge about Bitcoin all I have now is still the basic knowledge and I have already started accumulating Bitcoin using the DCA method. The more you wait the more you lose just imagine I was still waiting trying to get all the knowledge about Bitcoin I won't have accumulated the little I did now, so there's no point in waiting get the basic knowledge and start your accumulation journey.
Bitcoin is a good store of value, even if Bitcoin isn't worth anything today, it doesn't matter at all because the future is brighter than now. Why did I say what I said? I said this because I believe that Bitcoin is not something we should buy today and sell next month, it is something that an investor should hold onto dearly cy long and I also understand that the more an investor holds onto Bitcoin, that's the more knowledge the investor gets so, without putting the knowledge to practice (by investing) the investor will just stay without adding more knowledge to the ones he/she has already learned before.
The only way one can get full knowledge about Bitcoin is by investing, you will get to understand very well what it means when Bitcoin's price increases and when it decreases, only knowledge will not give us experience, so if an investor that hasn't invested in Bitcoin needs more knowledge, then he/she should invest and learn more from the investment side. So my follow newbies get the basic knowledge and start your Bitcoin accumulation journey so you won't regret waiting.
All of that sounds correct, and you should get more knowledge about bitcoin and yourself if you spend 4 years or longer accumulating bitcoin, learning about bitcoin and potentially adjusting (and/or tweaking) your various BTC accumulation (and/or BTC maintenance) strategies along the way, so maybe after 4 years or more of accumulating bitcoin, you will be in a much better position to both assess how your bitcoin accumulation had been playing out and whether you need to make further adjustments to your strategy at that point or just to continue with what you had already been doing.