Last week I posted a spin-off link to the famous book “Innumeracy”… I doubt it did much good, but there is much to be said for challenging any American about “numbers” and mathematics.

So far there have only been two guidelines offered for coming to an understanding of how many people were there: (1) the WaPo article with the images from the Park Service estimation algorithm, and (2) the fire department as quoted by ABC.

Using the WaPo diagrams and the images on youtube, it would appear to me the attendance ~ 150,000. The fire department report says 60-70k. A factor or two.

However, that is much smaller than the factor of 10 that the enthusiasts-for-not-being-tread-upon claim.