'Here is something: a wand-and-system I made from aluminum rod and cheap electronics plus gaffer tape, a wand that resembles a metal detector. Instead of a coil, though, the wand has at its end a borescope—a small videocamera with macroscopic lens. And at the actuator-end, a commodity “virtual reality” headset for viewing the live feed. I use this wand to wade through riverbeds in a new way, seeing differently—organizing my motion through an absurd, gloriously difficult microscopic perspective. Everything is waterproof, and I fall down a lot.'