The RIPE NCC has run out of IPv4 Addresses
Critical Perspectives on Provable Security: Fifteen Years of “Another Look” Papers, by Neal Koblitz and Alfred Menezes.
Tail cascade: a new indentation style for some OCaml constructs, by Gabriel Scherer.
dpic, an improved version of pic(1).
Hardy Littlewood Rules of mathematical collaboration.
blinry’s Advent Calendar of Curiosities 2019