> If that was not the case, how could we have 50+ programming languages, when the very purpose of a programming language is to express your ideas into a somewha

> If that was not the case, how could we have 50+ programming languages, when the very purpose of a programming language is to express your ideas into a somewhat tangible (insofar as one can claim the electronic written word to be tangible) form that can then be communicated to others. The same reason we have different specialties in the sciences/arts/etc. Even math itself has different languages to express the same ideas. Having different computer languages allows people to express ideas (solve problems) more efficiently given the domain of the problem. Very basic example: I wouldn't use zsh to write an xmpp server implementation (but it's possible) and I wouldn't use Java to call a handful of unix commands (also possible).