From the fact that programmers don't go to "hackathons" that are 8 hours long, have no set purpose, and are run by marketing weasels who say things like "build awesome hacks".
And I'm sorry I didn't realize there was a minimum time limit for writing code to be considered "programming". Next time I only code for 8 hours, I'll be sure to remind everybody that it didn't really count.
sigh Why do I poke at the trolls?
But I'm not. I'm not.
Why should having women show up at a hackathon be a goal in its own right? It seems contrived, and doesn't do much to address the disparity of women in technology (in fact it seems to further enforce the notion that such contrived measures are the only way to effectively get women to participate in such an event.)
Thank you for sharing your insight and correcting my worldview!