“I found that there were ways in which the equations could be changed so as to indicate a reduction in friction. In every such case, however, a reduction in friction here meant an increase in friction there. Never at any time was there a total decrease or, for that matter, a total increase in the friction within a closed group—that is, one in which no old members leave and no new members come in. What I proved, with the help of Elar’s achaotic equations, was that this was true despite any conceivable action anyone could take. Hari calls it ‘the law of conservation of personal problems.’