In this segment from Tuesday's Investor Beat, host Chris Hill and Motley Fool analyst Mike Olsen look at three criticisms that have recently been levied against Berkshire Hathaway (NYSE:BRK.A)(NYSE:BRK.B), ahead of its upcoming earnings report. The first is that the stock has become too big to invest in, the second is that the company will someday be Buffettless, and the third is that with Buffett himself having come out and said that he will never buy back shares of the company for any more than 1.2 times book value; with shares currently trading at 1.4 times book, why should investors buy when even Buffett himself considers 1.4 to be too expensive?

As a shareholder himself, Mike looks at these three ideas and discusses why he disagrees that each would be a cause for concern.