Comments by "Limrasson" (@Limrasson) on "Numberphile" channel.

  1. His reaction to tank 30 immediately raised suspicion and I would have said "yeah, that's 30 tanks in the bag."
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  2.  @vez3834  He reacted pretty much the same as I would have had if I had made 30 tanks. On top of that when you ask yourself the question "how many tanks should I prepare?" 10 is not enough, 20 would be adequate but this is for a presentation, you can't just be adequate, also that's 5% chance to pick tank 1 or 20 for the first pick and conventionally you want below 5% for something to be unlikely. Sure he could have just made 27, but 30 is a nice number. 40 tanks would have been overkill.
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