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The perfect time to buy more Bitcoin is during the dip, but most times I don't fully agree with anyone who's waiting patiently for the dip. The reason why is that most times we might experience a dip not knowing where we are during the dip period. So, buying the moment you have the money to buy Bitcoin is the best time. One might have the money to buy bitcoin but might be scared to buy Bitcoin because either Bitcoin price is higher or the other, so the person might not buy. Now most people, out of this fear, keep their money and wait. Maybe within a short while, some emergencies might occur and the person will use the money he kept for Bitcoin to do something else.
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Yes, buying bitcoin when the price is cheap or falling is very good. However, that doesn't mean that when the price of bitcoin rises we have to wait until the price of bitcoin falls before we can make a purchase. So when there is an opportunity (have money) to buy bitcoin, it is better to do it immediately. Because as you said, sometimes emergencies come without us realizing it.
However, what I will correct a little here is, if for example someone intends to buy bitcoin, but when there is an emergency their money is disrupted because of this situation. This means that the money to be invested is included in the hot money category and not cold money. So, so that the DCA accumulation system is not hampered by emergency problems, of course we have to prepare cold money. Apart from that, when managing finances, emergency money must also be available, so that the money planned to be invested in Bitcoin is not disturbed when an emergency occurs. Because if, for example, we invest in Bitcoin using the DCA technique and the money collected is hot money, it will definitely not go smoothly in the end. Because the money that has been accumulated in Bitcoin can most likely be withdrawn to cover if an emergency occurs. Therefore, when you want to invest in Bitcoin, financial management is absolutely necessary.