In a falling market, an investor is benefitted the most by averaging at lower prices. However, emotions can ruin the decision making and the investor can end up losing the opportunity.
The algo which i have written (link shared below) works best in a falling market as every candle it checks if the low is below previous low and then buys. So the average buying price keeps going lower and accumulation happens slowly and steadily.
OVer the long term, the benefit of low cost can never be over emphasised.