IPv4 on GEUL — A Semantic Language for AIhttps://geul.org/tags/ipv4/Recent content in IPv4 on GEUL — A Semantic Language for AIHugoenSun, 01 Mar 2026 15:00:00 +0900Why We Must Leave It Emptyhttps://geul.org/why/must-reserved/Sun, 01 Mar 2026 15:00:00 +0900https://geul.org/why/must-reserved/GEUL leaves 75% of its 64-bit space empty. The lessons of IPv4, Unicode, and ASCII tell us — the cost of filling is irreversible, but the cost of leaving empty is zero.