Forget about talking to grandpa to remember lessons. Most Europeans who fought in World War 2 either participated in or experienced the horrors of World War 1 or had live family members who did.
The chimp brain of ours is highly over rated in what lessons it can learn from blundering about. The more complex the issue blundering is garaunteed no matter what lessons are available and who tells a good story. Look no further than Afghanistan. No lessons learnt.
The only thing to do when things get too complex is get out of the room and run for the hills. Let the buffoon class who think they have a handle on complexity because of their grandpas stories blunder away. When the dust settles return and rebuild.
The chimp brain of ours is highly over rated in what lessons it can learn from blundering about. The more complex the issue blundering is garaunteed no matter what lessons are available and who tells a good story. Look no further than Afghanistan. No lessons learnt.
The only thing to do when things get too complex is get out of the room and run for the hills. Let the buffoon class who think they have a handle on complexity because of their grandpas stories blunder away. When the dust settles return and rebuild.