Once humans attained culture, the pressure on genetic change is less significant and adaptation can take place through the flexibility afforded through cultural change.
for - key insight - culture - adaption through culture, not genes - SRG comment - danger is progress traps! - This is a key insight. Once we have sophisticated culture, we don't rely on slow moving genetic change to adapt anymore. Instead we rely on culture! - This is the world of human progress, but is also a dangerous one because progress (cultural adaptation to environmental pressures) comes with progress traps.