Is that for reach and penetration and whom to target? Wouldn't know how I would apply that to ads.
Reach, penetration and target audiences is like 95% of what modern advertising does.
Modern advertising works on simple statistics rules like "people who drink Pepsi might need heartburn medicine" or "people who recently bought home appliances might want to buy another one".
These things are simple applications of the CLT. No psychology or manipulation is needed or wanted.