Textbooks will go the way of something like paul's online math notes (http://tutorial.math.lamar.edu/ http://tutorial.math.lamar.edu/), which are comprehensive

Textbooks will go the way of something like paul's online math notes (http://tutorial.math.lamar.edu/ http://tutorial.math.lamar.edu/), which are comprehensive enough to be a textbook/resource by itself (His linear algebra "ebook" is almost 300 pages, and covered everything in a first year linear algebra course). Or a not as formalized wikipedia.