Underground Serendipity
Social media is increasing serendipity, it’s pretty clear to me. This isn’t a very great example, but interesting to stumble across this cross-species structural similarity in two posts in the same morning. How much are human cities meta-excretions of our simple local actions.

Derinkuyu, ancient underground refuge city. via Warren Ellis”.

Excavated ant colony. Placement of fungal gardens and trash rooms (the bulbous nodes between air tunnels) creates heat gradients, resulting in air flow and CO2 emissions to the surface. via BoingBoing