AI uncovers surprising truth about how language evolves after analyzing 140 years of political speech
A massive linguistic study challenges the belief that language change is driven by young people alone. Researchers found that older adults often adopt new word meanings within a few years—and sometimes even lead the change themselves.
Note
Curator's note
AI analysis of 7.9 million U.S. Congress speeches from 1873-2010 shows semantic shifts aren't mainly generational. Younger speakers adopt new word senses slightly faster, but older ones follow within 2-3 years, occasionally leading (e.g., "satellite" geopolitics). Challenges "apparent time" hypothesis; adults adapt dynamically. Zeitgeist drives collective change. Prolific speakers shifted individually. Limits: adults only, Congress demographics.
psypost.org Created: August 25, 2025 Updated: March 9, 2026 article