For me I don't see any smartness in this and I see it as something that will make an investor not to accumulate his Bitcoin, considering the fact that there is no certainty as per knowing the breaking point of the bear market before the bull, and there is a possibility of the bear market not have gotten to the range of value expected before the bull, what if it couldn't get to the range of value expected? You might miss out buying Bitcoin for that year according to your expression while others would have been adding to their portfolios. Why not consider dividing the budgeted sum in two parts and starting with dcaing either weekly or monthly and buy wholesomely when there is downward trend in the market. Thou is just a suggestion the choice is yours and always know that what happened in the past may not happen in the future.