The world faces an 80% probability of breaking another annual temperature record within the next five years, according to a forecast released Wednesday by the World Meteorological Organization and the UK Meteorological Office. The projections, derived from more than 200 computer simulations run by 10 global scientific centers, indicate an 86% chance that one of the next five years will surpass the 1.5 degrees Celsius warming threshold established by the Paris climate accord, with a 70% chance that the entire five-year period will average above that milestone. For the first time, the agencies identified a slight possibility that global annual temperatures could reach the more alarming 2 degrees Celsius benchmark before the decade's end.

Ray Tracing in J

Y Combinator

2025-05-28 17:44

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Compiling a neural net to C for a speedup

Y Combinator

2025-05-28 17:22

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The Hobby Computer Culture

Slashdot

2025-05-28 17:20

A fairly comprehensive look at the early personal computer culture reveals that from 1975 through early 1977, personal computers remained "almost exclusively the province of hobbyists who loved to play with computers and found them inherently fascinating," according to newly surfaced historical research. When BYTE magazine launched in 1975, its cover called computers "the world's greatest toy," reflecting the recreational rather than practical focus of early adopters. A BYTE magazine survey from late 1976 showed these pioneers were remarkably homogeneous: 72% held at least a bachelor's degree, had a median annual income of $20,000 ($123,000 in 2025 dollars), and were overwhelmingly male at 99%. Rather than developing practical software applications, early users gravitated toward games, particularly Star Trek simulations that appeared frequently in magazine advertisements and user group demonstrations. The hobbyist community organized around local clubs like the famous Homebrew Computer Club, retail stores, and specialized magazines that helped establish what one researcher calls "a mythology of the microcomputer." This narrative positioned hobbyists as democratizing heroes who "ripped the computer and the knowledge of how to use it from the hands of the priests, sharing freedom and power with the masses," challenging what they termed the "computer priesthood" of institutional gatekeepers. This self-contained hobbyist culture would soon be "subsumed by a larger phenomenon" as businessmen began targeting mass markets in 1977.