I think the real problem is that it's a lot more convenient to add logic capabilities to whatever language than to squeeze the entire solution into Prolog's lim

I think the real problem is that it's a lot more convenient to add logic capabilities to whatever language than to squeeze the entire solution into Prolog's limited view of the world. I know there are extensions and whatnots to build database driven GUI's and web apps in Prolog, but everything I've seen looks like one step to the side and two backwards. Possible does not imply useful. If it was such a great idea, plenty of people would already be doing it by now.