If you notice, we can definitely reach the highest level of Bitcoin price, the most important time will be spent if the holding is long-term. However, when the price of Bitcoin reaches one million dollars, it will definitely be possible to accumulate 0.5 million or half of a Bitcoin using the DCA method. If we hold Bitcoin by following the DCA method regularly, then we will definitely be able to realize the next bull market.
I find your statement a little bit problematic. If you don't accumulate bitcoin now it's within the $100k and 1/10 of the speculated $1m, then will It be when bitcoinhas finally arrived at $1m that you will DCA half of $1m being $0.5m? Correct me if am wrong. But if I am correct about what you mean then your investment approach is not a wise one. You should invest more now than waiting for bitcoin $1m because now is the right time to invest. At least you mitigate the opportunity and accumulate more because when bitcoin hit $1m it will be even harder to buy a tangible amount of bitcoin because as it continue getting higher, the possibility of buying Satoshi in fractions increases or becomes high.
I think you misunderstood him even though his statement sounds logical but a bit problematic like you stated. From what he said, he seems to believe that if someone invest in Bitcoin for long term, and Bitcoin happens to hit $1 million, there is a chance that the person must have accumulated half of its value at the point, which is $0.5M.
the thing with this analogy is that while you are doing your DCA from this region going forward, if we are being really positive and we assume that you are able to do it for the long run and hopefully bitcoin manage to get to a million dollar, you can't outrightly ascertain how much of bitcoin you should have gathered by that times since you will have to keep accumulating from this point to the time when it has gotten to the one million dollar.
take for instance that you are an early investor that got into bitcoin at the time bitcoin was at $10K; looking at this point from that time will be like looking at a million dollar from the time bitcoin got to $100k. if you started doing your DCA from $10k to $100k, you are going to buy at the different market conditions which might be at some up and at some lows which will all give a groose holding that is still below the final $100k that is more like your fuck you status. by the time bitcoin has gotten to that region for the particular number of years you have been in the system, the quantity of bitcoin you will end up having in your portfolio will be dependent on how much bitcoin you have accumulated within that time frame and especially how much of them you buy at the lows. it is not as though you have to wait for the lows to buy but what is the case is that buying at a point that is close to the peak amount you are expecting bitcoin to get to will not yield you as much profit as you will get by buying more at the early stage of your investment.
in the end, the DCA methord still exposes you to buying and experiencing all the market conditions and in the long run, you get to enjoy the divident of your investment.