Возможно, некоторые заметили, что я куда-то пропал. Приношу свои извинения, ибо мало ел, мало спал и вообще... Короче, был в запое. Подведу промежуточный итог
украденной фразой:
Let me start by being perfectly clear: if you are a professional programmer, then Haskell is in your future.
In 1987, this statement would have been equally true about Smalltalk. Today, 20 years later, object-oriented programming, class hierarchies, model-view-controller patterns, and other ideas from Smalltalk are now commonplace, even though Smalltalk never saw widespread adoption.
Haskell is in a similar situation today. It is an esoteric language, yet stable and reliable enough for serious work. Perhaps you will learn Haskell, or even use Haskell on a real-world project. Even if you don't, ideas from Haskell are slowly finding their way into mainstream languages like Java, C#, C++, Perl, Python, and Ruby. Haskell is poised to have a strong influence over the next 20 years of programming and language design, just as Smalltalk has had an influence during the last 20 years.