Ну а кровопролитность в мире действительно снижается, причем очень быстро. Например, пишут, что: if the wars of the twentieth century killed the same proportion of the population as ancient tribal wars, then the death toll would have been 20 times higher — 2 billion rather than 100 million (Pinker, 2007). More recent data also show that violence is decreasing over time. European murder rates have decreased dramatically since the Middle Ages (e.g., Eisner, 2001; Gurr, 1981). For example, estimated murders in England dropped from 24 per 100,000 in the fourteenth century to 0.6 per 100,000 by the early 1960s. The major decline in violence seems to have occurred in the seventeenth century during the “ Age of Reason, ” beginning in the Netherlands and England and then spreading to other European countries (Pinker, 2007). Global violence has also been steadily falling since the middle of the twentieth century ( Human Security Brief, 2007 ). For example, the number of battle deaths in interstate wars has declined from more than 65,000 per year in the 1950s to less than 2,000 per year in the 2000s. There also are global declines in the number of armed conflicts and combat deaths, the number of military coups, and the number of deadly violence campaigns waged against civilians.
Это я по поводу фразы про Олимпиаду и намека на аналогию с заместительной терапией.