The idea of excessive diversification is madness. We don’t believe that widespread diversification will yield a good result. We believe almost all good investments will involve relatively low diversification. If you took our top fifteen decisions out, we’d have a pretty average record. It wasn’t hyperactivity, but a hell of a lot of patience. You stuck to your principles, and when opportunities came along, you pounced on them with vigour. Berkshire in it’s history has made money betting on sure things.