The last section nails it in a nutshell: ...imagine we lived in a world where we used the letter h to represent “one half” and had no separate notation for 2h.

The last section nails it in a nutshell: ...imagine we lived in a world where we used the letter h to represent “one half” and had no separate notation for 2h. We would then observe that h is ubiquitous in mathematics. In fact, 2h is the multiplicative identity, so how can one doubt the importance of h? But this is crazy: 2h is the fundamental number, not h. Let us therefore introduce a separate symbol for 2h; call it 1. We then see that h=1/2, and there is no longer any reason to use h at all. Color me converted as well.