So you want to select a certain period of time in which you see some bitcoin price performance going down, and you want to try to assert that you would have known in advance that the buying opportunities are better now? 

yes, we can see that on the charts.

Give me some kind of a hypothetical of perhaps someone who has $10k per year to invest, and is he going to sit on that $10k and then wait for a dip?

What if we are starting now?  Does he have $10k right now in his pocket? how is he going to invest it?  Then how about the $800 per month that comes, what does he do with that cash flow?  Buy every week as his pay check comes in or wait for dips?

You can even give me a blind hypothetical from any period, but you would be cheating if you do not deal with real matters regarding when the buys should be made and what are the circumstances that justify the buys and how is that going to end up beating some more pure form of DCA.

Give the strategy historically and then give the strategy starting from right now..    Describing after the fact what you should have done.. blah blah blah.. is easy peasy.. but no one knew the BTC price was going to drop to something like 36% below the 200-week moving average.  Remember if you believe in BTC, then you need to attempt to prepare for both up and for down and without being unrealistic in terms of what are the cashflow circumstances of your hypothetical person.... and then how are you going to apply that in a kind of universal way, and within all of that do you expect to actually beat DCA?  How about for normies?  you expect normies to figure out if the BTC price is going up or going down or if we are in a bear market or a bullmarket?.. and then apply your formula for 4-10 years or longer and then see how it worked out.