In an earlier post, one smart person responded that they're ok with MidAmerican and BNSF being combined because these companies file separate financials and they get the data on their own. I understand why you say this because as a diligent investor you are better off. But here's why I disagree with the principle.

People on this page are asking for more information about how Warren analyzes financial statements in response to a comment I made there. So yes, I am writing the investing book. A biography can't contain the detailed examples that people want, and someone (by default, me) needs to put together a coherent framework of how Warren actually invests. Yes! I will give you some bits of it as I go along, alongside, etc.