HackerTube / Video
How big is a billion? - Numberphile
Numberphile

Numberphile explains the long and short scales for naming large numbers, covering millions, billions, trillions, milliards and the Greek myriad, with James Grime and Tony Padilla.
HN links it whenever a thread hits the ambiguity of whether a billion is 10^9 or 10^12.
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