- that policy is not set by top brass but by the random interactions of those actually doing the work
- that policy is really just seeing which way the winds of history are blowing - and those winds are directed by economics, demographics, technology.
- but that we are not slaves to "psycho-history". All history has been forever "dependant" - one person really does make a difference - Greeks finding a silver mine and buying ships, One Mongol deciding to unify his tribes, it's all ...
In the end perhaps the real lesson is to make choices you will be proud to defend in the last years of your life