I think 'pure-declarative' people are seriously misguided. They like to reduce the dynamic idea of 'computation' to a static idea of 'declaration'. One of the

I think 'pure-declarative' people are seriously misguided. They like to reduce the dynamic idea of 'computation' to a static idea of 'declaration'. One of the biggest motivation for them is mathematics. All mathematics is written declaration on paper, and mathematics accomplishes so much, so we should follow that model. They fail to realize that math on paper is only half the story. The other half is the 'computation' going on in the mind of the mathematician. And even mathematicians haven't reduced it into declaration. Bottomline: Hybrid approach is superior to 'pure-computational' or 'pure-declarative'.