Why Did Goliath's Expedition Fail?

Malcolm gladwell's book, david and goliath has some interesting things to say this fight. Goliath wasn't quite as fearsome as he seemed. He was at least six foot nine, but humans aren't built to be that big. One plausible explanation is that goliath was suffering from a medical condition which causes the production of too much growth hormon. It also often causes double vision. In the race to the south pole, robert falcon scott was goliath, apparently the overwhelming it, but in reality, in a hopeless position.