so looking at it very well you notice that bitcoin price may rise above 70k or fall below 50k, say I said that is because the price is unpredictable
It is not completely unpredictable. It has mostly been going up since 2010 (when it first got a price), and yeah there have been periods of down, but you will must consider that the trajectory has mostly been up, which justifies considering getting some in case it catches on, and then once you get some just continue to buy it... . there is no reason to believe that it has stopped in its overall trajectory to go up, even if there are likely going to continue to be various corrections (and volatility) along the way.
Perfectly said @JayJuanGee because looking at the way Bitcoin price is moving I think is really good for one to Accumulate more Bitcoin in our portfolio because just as you have said earlier if we check since that time till today will would notice that you are right, because even as at yesterday Bitcoin price $56 but just this night the price have increase to $63 and if we check it now any one who buy Bitcoin as at yesterday that the price was DIP you we see that you have make small profit today that price is up, and I still have strong feeling that Bitcoin will go more higher in the future.
I doubt that we should be measuring our BTC investment in short time frames, and surely if we measure in 4 year or longer time frames, then we likely are going to be doing quite well, even right now.
Let me take a couple of shorter time frames and let's see where we might be, even if we
started investing $100 per week in BTC at various high price points in 2021.
Example 1: Started buying $100 per week at the beginning of the year right before the first 2021 price peak. We would have had invested $17,500, and we would have about 0.5386 BTC (currently worth about $33,833) (so nearly 100% in profits... or nearly doubled in value.
Example 2: Starting in October 2021 - right before the second peak in the BTC price. The guy buying $100 per week would have had invested $13,600, and we would have about 0.4489 BTC (currently worth about $28,218) (so a little more than 100% in profits... or more than doubled in value.
Those first two examples are not quite right, even thought the first guy has more BTC than the second one.. so usually the longer that you are buying BTC then the more likely you would be in higher levels of profits..
Let's try another example (
Example 3) of a person who has been
buying $100 per week for the last 4 years, so that would take us back to May 2020... He would have had invested $20,900 and accumulated 0.8405 BTC (currently worth about $52,909) (so about 150% in profits...
Let's try another example (
Example 4) of a person who has been
buying $100 per week the last 7 years, so that would take us back to May 2017.. back before the 2017 run up... He would have had invested $36,600 and accumulated 3.689 BTC (currently worth about $232,300) (so about 535% in profits...
So there is a kind of tendency that the longer that you invest, then the more likely you are going have created more options for yourself, as long as you mostly accumulate and protect your stash from getting taken from you... maybe privately storing it.