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Mark Tobak's avatar

Why more people don't emulate Buffett and Munger? To my mind it is the difference between what is intuitively true and what is mathematically true, what we want to believe and what is provable. It is a massive flaw in the evolved mind that few can compensate for, or for very long. It is a flaw that Warren and Charlie understood not merely because they're brilliant and mathematically gifted, highly reflective and thoughtful, but usually wiling to adapt their thinking to new information and appropriately regretful when they don't. "Thumb-sucking!"

Recall Charlie noted, "It is as if God made the world so only math can understand it."

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Arthur Clarke's avatar

It might be worth noting an important difference between Berkshire and Markel when comparing holdings like Apple: Berkshire was allowed to purchase $30 billion of Apple shares because in the mid-‘80s its insurance commissioner authorized it to hold concentrated equity positions and not required to hold widely diversified fixed-income securities. Markel would not be allowed to hold such a correspondingly large position. No other insurance company to my knowledge is allowed to hold 400 million shares of Coke.

As one reader of this confirmed to me: National Indemnity initially owned BNSF.

Having noted this, I do think that Markel is trying hard to emulate Berkshire in many ways; for example, it’s establishment of Markel Ventures. Alleghany had also begun to purchase wholly owned businesses. After purchase, I’m sure Alleghany was able to convert its insurance float to a more concentrated portfolio.

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