Why limit it to just two horizontal cuts?

I’ve always just made equal horizontal and vertical cuts, then slice the onion crosswise.

This results in pretty much no large pieces, and only some smaller pieces (which I prefer over larger ones, anyway).

I don’t care about standard deviation — I only care about minimizing the maximum size (but still without turning them to mush).

(Also, I know this was more of a fun mathematical look at chopping onions vs. practical. But still the “two horizontal cuts” thing seemed to be practical guidance, when it seemed like just equal horizontal and vertical cuts is far superior. But, granted, it’s a little trickier to do.)

EDIT: looking at Youtube, looks like the 2-cut thing is normal. But adding a few more cuts isn’t that much harder, and eliminates the larger pieces from the 2-cut method. I’ll stick to my method, even if it’s a little more work.

Horizontal cuts does next to nothing, the onion is already "cut" horizontally.

In my experience it does worse, as the onion gets unstable to do the vertical cuts.

The post's dataviz in fact allows you vary the # of horizontal cuts and compare the results. Take a look.