Wifi in the garden

Ah, wifi in the garden, one of the better inventions of the early C21st. Apart from wifi I expect the main achievement of our generation will be remembered as the perfection of that strange waddle that allows a person to carry a full cup of hot coffee in an overcrowded public place. People have got incredibly good at that in the decade or so since Starbucks became ubiquitous and I occasionally wonder whether there's any proper use humanity could make of that widespread, entirely newfound and rigorously practiced talent.

Or indeed what else we could have learned instead in the same amount of time. I doubt it's a whole Wikipedia's worth of social surplus (already, I'm sure you'll agree, the standard measure of wasted man-hours - we should clearly start measuring our wasted hours in nano- or pico-wikipedias). But it might be close.