What's the Opportunity Cost to Berkshire?

Berkshire Hathaway CEO Charlie Munger talks about the impact of activism on corporate management. Berkshire has made 25 tuck ins last year and will keep making more, he says. The firm would be delighted to buy some company for two or three billion that we thought would do very well over time,. but that applies to one for 20 or 30 billion. He adds: "We're not passing up anything of any size that's going to have any real impact on Berkshire"