Practically everyone is going to have a general purpose computer in their pocket, it's so easy to underestimate that, that has got to be the really, really big one.
A lot of parts of L.A. are interchangeable with suburbs in Joburg. Very big, ostentatious houses with palm trees and lawns. Lawns are very important. Never underestimate lawns.
Passion is the driver of achievement in all fields. Some people love doing things they don't feel they're good at. That may be because they underestimate their talents or haven't yet put the work in to develop them.
I don't think you can underestimate how much carers need some support.
Decolonisation seems to have dented little the sense of superiority that since 1945 has made American leaders in particular consistently underestimate the intensity of nationalist feeling in Asia and Africa.
Most people hugely underestimate the amount of 'empty space' we have in our country. Fly over the U.K., and you see that human settlement does not fill up the U.K. at all. It accounts for something of the order of 15 per cent of the landmass.
Given the scale of issues like global warming and epidemic disease, we shouldn't underestimate the importance of a can-do attitude to science rather than a can't-afford-it attitude.
