Olympic athletes don’t exercise 72 hours a week, more like 20 to 40.
Let us not be silly that these are the same.
But also, I'm on team "Its really hard to do the same mental job ~20 hours a week". I can do 2hr x 3 cycles x 5 days a week. But that means breaks.. When I did 12 hour days I was terrible at hours 9-12.
Thats why the NBA doesnt present in the Olympics.