There has been much discussion in the last few years of "web apps". Most of the discussion centers around whether "web apps" that do not degrade gracefully, use progressive enhancement, have bookmarkable pages, use semantic tags, and so forth are "Doing It Wrong(tm)", or if JavaScript is sufficiently prevalent that a JavaScript-dependent site/app is reasonable.

What I fear is all too often missing from these discussions is that there isn't one type of "web app". Just because two "things" use HTTP doesn't mean they're conceptually even remotely the same thing.

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