On related news, you can talk point to point with just a pair of copper wires that physically connects with a device on the other side! Wait there's more: a co

On related news, you can talk point to point with just a pair of copper wires that physically connects with a device on the other side! Wait there's more: a couple of simple plastic glasses joined with a string under tension also does the trick. However more seriously, while being snarky about "obvious" things can be fun, we should all remember to acknowledge the xkcd's "Ten Thousand" effect as a very real law of life.