Human contacts were parcellated, to use a term from brain science or systems theory; parceled out... One could therefore:

1. pursure a project in paleolithic living,
2. change the weather,
3. attempt to restructure your profession, and
4. be happy,

all at once, although not simultaneously, but moving from one thing to another, among different populations; behaving as if a different person in each situation. It could be done, because there were no witnesses. No one saw enough to witness your life and put it all together...