 Maybe the width of, I don't know, a very large straw? Absolutely, yeah. And the fibres that you can see there, they're less than a millimetre wide. There are a few wires poking out the top that kind of look like human hairs. Then we've got layers of insulation. We're trying to weigh the internet, so how much do you reckon that bit of cable weighs? 10 milligrams?