I've always wondered what it would be like to "live" in ALGOL 68 for a while, because of its ambition and idiosyncrasy. With a modern perspective, what would I be surprised to actually have, and what would I be surprised to miss?
(Apart from the wild terminology. File modes are called "moods", and coincidentally, ALGOL 68's three standard "channels" (i.e. files) are "stand in", "stand out", and "stand back" -- I kid you not, close enough to 'stdin', 'stdout'.)
Basically, writing a CS paper in LaTeX using the "alg*" packages (algorithm2e, algorithmicx, algorithms, algpseudocode, algxpar, algpseudocodex, etc.) is living in the ALGO 60 / ALGO 68 world. For the most part, nobody uses anything from the standards that would require superfluous explanations in a paper.
(Apart from the wild terminology. File modes are called "moods", and coincidentally, ALGOL 68's three standard "channels" (i.e. files) are "stand in", "stand out", and "stand back" -- I kid you not, close enough to 'stdin', 'stdout'.)