Take a guess at how many dots this took me : woahdude

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SargeZT on April 6th, 2019 at 22:43 UTC »

Interesting question, so I thought I'd take a crack at it.

First, I took your completed picture, did some perspective nonsense to get it flat, adjusted the levels to make the dots clearer, and turned it grayscale.

Next, I measured the size of 50 individual dots to figure out an average size; obviously this would vary based on how hard you're pressing. I came up with an average of 35 pixels area per dot.

Finally, the calculation is simple. As the area of the image is 5656284px and Photoshop's histogram indicates 84.62% of the image is comprised of dots, this leads to 4786348 pixels of dots. Divided by the average dot size gives us....

136,752 dots!

Of course this ignores places where you'd double up in the densely packed regions... but it should be in the neighborhood.

Edit: Since I still had the numbers laying around, if we assume the area of the dots follows a standard distribution, with 99% confidence we can say it's between 108,605 and 341,811 dots. I think it's definitely on the lower end of that though.

a_cool_username_ on April 6th, 2019 at 20:14 UTC »

You don't even know how many dots this is

Stubble_Entendre on April 6th, 2019 at 19:06 UTC »

The scientific answer is “an assload”