Hand Sanitiser

I like this:

Turns out that a very small percentage of a very, very large number is still significant. Your hand sanitizer is only as good as the number of decimal points the nines stretch to.

by Jamie Condliffe in Gizmodo, on this:

xkcd16

via xkcd.

(It’s 20,000 for those of you struggling with your decimals.)

5 thoughts on “Hand Sanitiser

  1. I am always somewhat annoyed by the rampant paranoia in sanitiser commercials. It is a miracle humans managed to survive the last few 100,000 years.

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