Just read a Byte article dating back to 1995 that predicted that Constraint Logic Programming in Prolog would be the programming paradigm that would gain the most commercial significance over the next 5 years.

Hands up if you’ve heard of Constraint Logic Programming.

Slightly sad thing is that CLP does actually look very interesting, as it seeks to tackle the NP-complete class of problems that traditional programming solutions are generally bad at.

Genetic algorithms appear to be more in vogue for NP-complete problems at the moment, possibly because to implement a performant CLP system you generally need an implementation of Prolog, whereas its possible to write a genetic algorithm in any current commodity OO language.