Fundamentals first.
If there's no clear fundamental reason for the price to behave so, then
,,it makes sense" to build a bullish position.
(Talking about equities. Given the brrrRrr print and global order, have no clue on how to measure the bonds)
https://www.nasdaq.com/articles/irobot-irbt-shares-cross-above-200-dma-2020-04-24
Tho, it has little accuracy overall, if to compare with bottom fishing, since
% drawdowns would be larger & freequent.
Holding periods would also expand in your disfavor.
Conclusion - better than nothing for a newb ; from thousands of bets, especially SNP type of a kind, would provide a small edge over other ,,blind" retailers, yet,
as ones experience would grow, inevitably, this indicator would be (should be) -
forgotten.