Logically is that possible?? You need an up ward price movement in order words price increase to close a trade in gain but if everything keeps coming down, how then will the gain come out?
Sell when the price graph its near a local maximum, rebuy when it reaches the next local minimum. Rinse and repeat. Some coins have done a -50% these days, selling at the top and rebuying at the bottom you would have doubled your portfolio.
An autonomous trading system designed for creating revenue considers far more factors than the local minima and maxima, which is it too difficult for humans