You mean, the little ant on the floor?

I barfed at 1-based indexing for about a week, but now it is as natural as anything.

I would compare 0-based and 1-based indexing with whether you put semicolons at the end of each line or not. Either way doesn't really change the feel (semantics) of the language.

Also, fortan is 1-based, iirc, and a lot of numerical code is in fortan.

Oh, and many many beginning programmers and scientists have a hard time with 0-based indexing. Not sure why, but such you hear, so the choice is really not that odd.