I try to follow the "the multiplication rule", so I thought a discussion around the concept would be interesting:
https://fundooprofessor.wordpress.com/2015/11/28/multiplication/
Warren Buffett:
Charlie Munger:
Douglas Adams
This concept simplifies the investment process. However, as Buffett points out, you should not write off low-probability events with high consequences.
I agree that the best way of mitigating risk is buying good businesses:
Keep it simple, and be paranoid.