Ok, so I was working on a post that was just going to be a simple thought experiment about BRK versus the S&P 500 going forward and questions around size and of course then I get bogged down citing Buffett partnership letters and Charlie's interview with the Journal (which was fabulous BTW) and then I notice a guy at the annual meeting kind of asked them about what I was thinking, but Buffett basically pretended (imop) not to follow the question about financial leverage/float.
So, if you had new BRK and it had $500 billion in assets and you invested everything in the S&P 500 and then just applied the leverage (1.6x?) from the float would you not outperform over the long term assuming positive returns in the S&P 500 and free or negative costs to the float? What would be the logical limit of this?
Maybe growth until the insurance operation keeps growing until it becomes too large and you start writing money losing business/calls on capital that coincides with a sell off in the market/economic recession (i.e., removing the two assumptions above)?