If you accumulate tiny incremental advantages over your opponents, they add up to big gains. Athletes have support teams of nutritionists, physiotherapists, exercise physiologists, sports psychiatrists. All those fields get better every year. They have technological improvements: bikes, swimsuits, running shoes. Olympic athletes are supported financially by their governments. There’s a wider pool of athletes to choose from and talent scouting is better. People are growing bigger and stronger than ever before because of all the food we have access to now. The baseline level of technical skill in a sport increases over time, too.
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