The Rule of Least Power

I read an interesting text about sharing information and a simple principle which should help facilitating information sharing: The Rule of Least Power by Tim Berners-Lee and Noah Mendelsohn (editors).

Here's the abstract of that text:

Abstract

When designing computer systems, one is often faced with a choice between using a more or less powerful language for publishing information, for expressing constraints, or for solving some problem. This finding explores tradeoffs relating the choice of language to reusability of information. The "Rule of Least Power" suggests choosing the least powerful language suitable for a given purpose.