Think of turning on language extensions as importing a library. Lots and lots of language extensions are pretty much as benign as importing a standard library.

Think of turning on language extensions as importing a library. Lots and lots of language extensions are pretty much as benign as importing a standard library. Moving them into the language proper is an aesthetic issue that has minimal effect on writing production code. [The analogy is, of course, not precise. Please don't respond as though I am implying it is.]