xkcd #3232: Countdown Standard
Title text:
Anyone who is caught counting ‘three … two … one … zero … GO!’ will be punished with a lifetime of eating only ISO standard food samples.
Transcript:
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Source: https://xkcd.com/3232/


That’s what I do. If you’re ready, you’re ready, no point in counting.
Why use a number then!?
Saying three implies one and two.
Why not say “on my mark” or something?