I regularly go to the climbing gym. I couldn't help noticing that there are so many programmers in the climbing gym. People talk about programming related topic

I regularly go to the climbing gym. I couldn't help noticing that there are so many programmers in the climbing gym. People talk about programming related topic all the time. I also went to a dancing school for a year, but I hardly saw any programmer there. I also like snowboarding but it's hard to interact with people around you so I don't know. Outside of sports, I like board games and there are more programmers than average.