David did not defeat Goliath by sheer luck or a miracle

In his book David & Goliath: Underdogs, Misfits, and the Art of Battling Giants, Malcolm Gladwell argues that the way we think of advantages and disadvantages is wrong. David did not defeat Goliath by sheer luck or a miracle, and it was not a matter of the weak triumphing over the strong. David defeated Goliath, Gladwell tells us, because Goliath’s perceived advantages of size and armor hindered him instead of helped him, and David was able to use his skill with the sling to exploit these vulnerabilities.