[jwr]

This isn't as much of a joke as it sounds.

I've just written a utility I needed in Perl. I tend to think about some things in the long term, and this utility is something I want to be able to run 10 years from now.

[it's a concistency checker (hasher) for file archives, to find out if the bits in your copy are really the ones you put there, important for multi-GB photo archives — see https://github.com/jwr/ccheck]

I do most of my programming in Clojure, which has excellent backwards compatibility and takes a long-term perspective. I still run some unmodified Clojure code from 8 years ago. And yet for really long term stuff, I would much rather write it in Perl. It has been around for a very long time, is very mature, and can be expected to last, even if it isn't the latest fashionable trend.

Take a look at the various programming languages+environments around you: there will be very few where you can expect to be able to run your code even 2-3 years from now, much less decades later.