I really wish people who talk about wireless charging would do some math.<p>To get any efficiency, you need to tightly constrain the EM field, at which point, you are effectively hitting a plug <i>anyway</i>.<p>Or, you are accepting enormous radiative losses and losing massive amounts of power. Doubling or tripling the power draw in every device just so it's powered wirelessly is a non-starter.<p>For cars, we're more likely to get automated charging stations that just plug themselves in. That's going to be a useful problem to solve.