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Sunday, January 11, 2026
Netflix Today: Expanding the Limits
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Tuesday, February 11, 2025
Compiling BASIC, Decompiling* Wolfenstein
Yesterday, Peter Woit posted on Bill Gates's new autobiography.
An excerpt from his post:
In other Harvard-related news . . .
A computer-related fantasy film — "The Net" — and the above
headline from February 6 suggest a look at . . .
* Vide "Paranoia Strikes Deep" (Log24, Dec. 1, 2011).
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Monday, February 10, 2025
Brick Space: Points with Parts
This post's "Points with Parts" title may serve as an introduction to
what has been called "the most powerful diagram in mathematics" —
the "Miracle Octad Generator" (MOG) of Robert T. Curtis.
Curtis himself has apparently not written on the geometric background
of his diagram — the finite projective spaces PG(5,2) and PG(3,2), of
five and of three dimensions over the two-element Galois field GF(2).
The component parts of the MOG diagram, the 2×4 Curtis "bricks,"
may be regarded* as forming both PG(5,2) and PG(3,2) . . .
Pace Euclid, points with parts. For more on the MOG's geometric
background, see the Klein correspondence in the previous post.
For a simpler example of "points with parts, see
http://m759.net/wordpress/?s=200229.
* Use the notions of Galois (XOR, or "symmetric-difference") addition
of even subsets, and such addition "modulo complementation," to
decrease the number of dimensions of the spaces involved.
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