This is a nice explanation, but I couldn't help but notice that the estimate of the number of gumballs in the pictured machine seems closer to 1000 than 100 (co

This is a nice explanation, but I couldn't help but notice that the estimate of the number of gumballs in the pictured machine seems closer to 1000 than 100 (contrary to the claim in the article). You can actually see about 100 gumballs in the picture, so there must be far more hidden behind them -- my guess is closer to 500, which is about twice as close (in order-of-magnitude) to 1000 as to 100.