I heard about human echolocation on a podcast once and was immediately fascinated with it. The idea that humans can use sound waves to “see” their environment doesn’t really seem possible.
But it is! And here’s a real cool video of how it works. It even features an example or two of how people can learn to develop the skill.
Might be something to add to the “I’d like to learn that” list. Maybe I’ll be the next Daredevil. But probably not.