What did you mean by Investing the total investment amount at once? Anyone amount or money that is within your discretionary, even if you invest it at once there's nothing wrong the only time something will be wrong is if you used all your discretionary and went to touch money that is meant for other things, it means you are really joking with your investment especially when you don't have something that can cover up what you collected immediately. You can invest as you like, as long as it is within your discretionary but as a no coiner or low coiner you should have limitations.
I think Abaeze is misunderstanding the entire strategy of investment.
I was expecting you to explain the various Bitcoin strategy because many folks believe DCA is the only successful and effective strategy. It seems they do not know why many practice that strategy. There is buying on dips, lump sum, dca and so many others. But its preferable to use DCA as a pleb so you can manage your investment and other part of you life without getting hooked. On the other hand, people who are rich use lump sum to buy. Which I will prefer if I have that kind of money.
There are only the three techniques for accumulating bitcoin through buying. Those three and/or combining hybrids of the three, which are DCA, lump sum (or right away) and/or buying on dip..
If you think that selling to buy is a strategy then that is trading.. and gambling, and it is not an accumulating through buying strategy.
Sure folks will trade and/or involve themselves in shitcoin in order to attempt to buy more bitcoin. Again, that is not a strict buying strategy.
I suppose some other strategies could be to use leverage or to buy whimpily or to buy aggressively, but using leverage or other financial tools are not necessarily strict buying strategies since they involve some additional risks by using those tools, and whether someone buys in a whimpy or an aggressive manner, or if he might front load his investment buy trying to buy a lot in the beginning and maybe slow down at later times, that is just a form of attempting to be more aggressive but does not really change the underly fundamentals of the three modes of buying BTC.
Another thing that complements how a person buys relates to cashflow management, so there can be various ways to manage cash that are strong and systematic in terms of building and maintaining various back up funds.. to help to iron out ups and downs in income and/or expenses, but also could cover up calculation mistakes or even level of aggressiveness mistakes and/or getting emotional about how much is being invested or even about BTC price moves.