A strange little side quest
The mechanics around FNF VS Cian have roots that stretch far beyond modern browsers. Pong was field-tested in California bars in 1972 and helped launch the modern arcade-game era. The timeline takes another interesting turn: In 1958, Tennis for Two used an analog computer and an oscilloscope to turn simple physics into a playable tennis-like demonstration. The details change, but the appeal of learning a system and trying again is remarkably persistent.