If 20% of a group are harassers (evenly across genders), & the group has more men than women… then each woman gets 16x more bad experiences than each man.

The Petrie Multiplier: in a group where x% are bullies/harassers, the minority will feel it (x/100)^2 more.

This blog post has stuck with me through the years. I like the maths in it, & I like the conclusion that attacking sexism/racism etc doesn't have to be an attack on the majority.

From @turingfan@twitter.com

blog.ian.gent/2013/10/the-petr

@hadleybeeman this is a very cool visualization. I'd also like to see what happens in the graph when we include sexist remarks toward one's own gender (men harassing men, women harassing women).

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@adrint @polychrome Yeah, I had a really hard time phrasing that in a non-binary way. I’m sorry that I didn’t get there in the end. Apologies.

@polychrome @adrint oh, I’m sorry! That was a reply to another comment. I’m with you on the question though... interesting to expand the analysis!

@polychrome @adrint Oh no wait. I’m all turned round. It was @adrint who was talking about gender not being real. So I am relying to the right comment — just also crossing with your point, @polychrome. Sorry all round!!

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