[yaktubi]

Isn’t that a mapping? Because the primary purpose of the string of glyphs is readable by humans. Such representation is mapped to the numerical representation for storage in the computer. It may also be mapped to lines of ink written on a piece of paper for transmission

[bouncycastle]

Oh, in my example, it's just a coincidence that the number was readable by humans! Other numbers may come out as complete gibberish.

The "mapping" you may be referring to is happening outside and subject to how your brain /your browser interpret it. (How do you know that when I posted the comment, that I didn't supply the raw bits of the number?! ;-))

Anyway, it was just a joke for low level-programmers I guess. Have a good day ;-)