So.... I don't understand how this is better or worse than using forecast. You talk about having to choose the best algorithm but it seems like Prophet is just

So.... I don't understand how this is better or worse than using forecast. You talk about having to choose the best algorithm but it seems like Prophet is just another algorithm to choose from. Is there some kind of built in grid-search or are you just stating that results from your AM have been more accurate than ARIMA?