the.com/fyi
the polite prefix for information you didn't ask for but now can't unknow.
means an abbreviation for for your information, used to flag a message as informational rather than requiring action.
from emerged in american business memo culture in the 1930s-40s as office shorthand, migrated to email in the 90s, then to texts, losing a little politeness at each stop.
office memo originborn in typed interoffice correspondence, not internet slang
tone signalcan soften bad news or subtly weaponize it
no reply impliedtechnically absolves sender of expecting a response