This comment (in the tree above but relinking here) helped me understand: https://news.ycombinator.com/item?id=13126964 https://news.ycombinator.com/item?id=131

This comment (in the tree above but relinking here) helped me understand: https://news.ycombinator.com/item?id=13126964 https://news.ycombinator.com/item?id=13126964 Bluetooth frequencies are absorbed by water (and your body is water)