The Israeli supermarket inefficiency theory.

Here is an amateur theory of mine:

Jews are a diaspora people forced into mercantile jobs and ghetto villages -> Jews organize their lives neatly within a ghetto-based society -> Ghetto is interrupted by the Final solution and Jews get homesick -> Jews return home -> Jews become Israelis -> Israelis find themselves using all energy, tactic and strategy in order to survive, at the behest of everyday needs -> Even after overcoming the survival threshold, survival takes precedent over everyday societal efficiency -> I wait in line at the supermarket for 20 minutes with only one person ahead of me.