Why don't other programming languages have ranges?

[Adam Ruppe]

Lerdorf's quote strikes me as actually being somewhat close to what
Walter is talking about. Web applications don't focus on making a
thing that never fails, but instead achieve reliability by having an
external watchdog switch to backups - that is, a fresh copy of the
program - when something goes wrong with the first one.

Doing this gives them adequately good results at low cost.