And yet the software industry survives and thrives with only niche use of functional programming at best... EDIT: To clarify. I am agreeing with the original a

And yet the software industry survives and thrives with only niche use of functional programming at best... EDIT: To clarify. I am agreeing with the original author. If Functional Programming is as great as it is supposed to be it would have been eating everyone's lunch by now. It has been around forever, yet it remains quite niche. This indicates strongly that there must be underlying reasons it is not more popular.