This paper was published in 1991, and talks about software and systems developed in the 60s. Almost 30 years after the publication of this paper, we are still struggling with the same problems.
Better link: https://dl.acm.org/citation.cfm?id=114686
Even better http://larch-www.lcs.mit.edu:8001/~corbato/turing91/
Bold typographical move with the “inline callouts”. I kind of like it.