2 items most bbers don't have
being patient
posing/stage presence
it is all a compound effect starting with genetics -
a kid has good genetics and sees results, so he trains more, takes more time to focus on his diet, he spends more time in the weight room then the baseball field, then he hangs out with other bbers,
his discretionary income/time go to bbing, causing more and more gains , he then competes, gets recognition... puts more time and money into the sport. buys more supplments.
it is the classic 10,000 hour rule from the book "Outliers" by Malcolm gladwell.
compound effect but it starts with good genetics - responds fast and goes more and more into the bbing year after year