Obsessions are antifragile –you feed them by trying to get rid of them.

Hydra in each one of us (ANTIFRAGILITY, Prologue)

Envy, punishment of modernism. Moderns are invaded by electronic display of goods and lifestyle of others, like a punishment, while robbed of the protection the ancients developed through varieties of religious (or classical) heuristics (s.a. Arabic 7ahsad).

People are more prone to treat each other as equals when they both know that they are not equal.

Much easier way to understand the concepts: Antifragility as “positive skewness”, fragility as “negative skewness”. We can see how hidden risks and iatrogenics are fragile.
(Technical: a convex payoff (on a random variable) implies positively skewed distribution, a concave payoff the opposite).