…the good investment strategy is to put 90% of your money in the safest possible government securities and the remaining 10% in a large number of high-risk ventures. This insulates you from bad black swans and exposes you to the possibility of good ones. Your smallest investment could go “convex” – explode – and make you rich.
This is very different from Aristotle ideal of the golden mean. The golden mean says that the best position between two extremes is the middle. The problem that I have with the golden mean is that Christ's life really doesn't fit this model. Jesus' life wasn't always moderate. Sometimes Jesus was incredibly radical. I think Taleb's barbell strategy looks more like how Christ lived his life.
In the majority (90%) of life's situations it's really a good idea to be hyper-conservative. If you live your life 100% conservatively you miss out on a lot of things that makes life worth living. Always playing it safe is just not fun. So there should be that 10% of life were you are ruthlessly risky to expose yourself to what Taleb would call the black swan and what I would call from a Christian prospective the Holy Spirit. You really don't want to go more than 10% because most attempts at innovation (mutation in evolution) fail.
If you take the golden mean when dealing with our society your are going to take on too much risk. Your going to take on too much crap and when things blow up your going to end up a turkey.