This is obviously too big to be digested in a single chunk, but from a very brief first read, it looks impressive. The table of contents alone (19 pages) is an extraordinarily good outline of what CS is, and what the major components and questions of it are.

The author is William J. Rapaport, emeritus professor of computer science at SUNY Buffalo: https://cse.buffalo.edu/~rapaport/

Wikipedia bio: https://en.wikipedia.org/wiki/William_J._Rapaport

Trivium: WJR is the author of "Buffalo buffalo buffalo buffalo Buffalo buffalo".

There've been some earlier submissions, few with much discussion, though from 2015: https://news.ycombinator.com/item?id=10388603

Also relevant, the "Philosophy of Computer Science" article at the Encyclopedia of Philosophy: https://news.ycombinator.com/item?id=16451072 https://plato.stanford.edu/entries/computer-science/