Pretty bored, apparently. Although the history of the domestication of the potato is pretty darn interesting. It has enabled millions of people that would otherwise have starved fairly quickly during various wars and famines after its introduction into Europe in the late middle ages to take a much longer period to starve. Or if they survive, to wait until a potato blight hits to starve. But it was most enlightening how much nutrition this thing contains, and how well it can keep you alive when nothing else is available. But I'd already seen The Martian so that wasn't really news.
But an interesting book. And now I have both softcover and the audiobook.