@pbump@pbump Plus, there is a whole genre of people taking pictures of their bikes when doing something. There's even a facebook group called "Look at my bike leaning against stuff." https://t.co/CEkCIxK6bt
That's what he was doing.
@nntaleb I've always thought the polarized model of training makes sense because our ancient ancestors would have engaged in long periods of zone 1/2 while hunting, with occasional bursts of z5.