Yall missing the point.

If your manager at work acted like a legit insane person, but said one true thing, you wouldn't be there saying that he/she is smart in that particular area.

If by some chance in hell tarrifs actually work, its due to pure luck, not due to any strategy. Which is what the original person I am replying to made it seem.

I believe the phrase is “even a broken clock is right twice a day”.