Went to a fascinating talk today about toilets. Tomorrow is apparently world toilet day and UCL decided to celebrate with a lecture about loos. It's actually a massive problem, in that more than a third of the planet's population don't have access to sanitation, and this leads to a huge number of health problems. There was also a fascinating discussion of how the built environment determines who gets to use public spaces - apparently in Victorian London there were only public toilets for men, because women were not expected to leave the house. And since there were no toilets for them, really, they couldn't. The speaker then drew a connection from that, through race, disability, and now transgender. Really interesting stuff.