Dollar cost averaging isn't about entering the market at its lowest point instead it's a strategy use to avoid putting all your money into a project at ones and then the market declines. If it was about entering the market at the lowest point then there will be no need of dollar averaging your investment. If you get a project at it's lowest point then you just have to buy in and wait for an increased.
Dollar cost averaging your investment gives you an opportunity to buy into the market at every decreased the market experiences and reduce the outcome of you regretting buying at a higher price. Dollar cost average comes in handy because it's uncertain to know the actual bottom of Bitcoin or other cryptocurency of your interest.