Limits to Growth

By Ramesh Akkineni

Warren Buffett wrote this about limits to growth -

In a finite world, high growth rates must self-destruct. If the base from which the growth is taking place is tiny, this law may not operate for a time. But when the base balloons, the party ends: A high growth rate eventually forges its own anchor.
Carl Sagan has entertainingly described this phenomenon, musing about the destiny of bacteria that reproduce by dividing into two every 15 minutes. Says Sagan: "That means four doublings an hour, and 96 doublings a day. Although a bacterium weighs only about a trillionth of a gram, its descendants, after a day of wild asexual abandon, will collectively weigh as much as a mountain...in two days, more than the sun - and before very long, everything in the universe will be made of bacteria." Not to worry, says Sagan: Some obstacle always impedes this kind of exponential growth. "The bugs run out of food, or they poison each other, or they are shy about reproducing in public.
Even on bad days, Charlie Munger (Berkshire's Vice Chairman and my partner) and I do not think of Berkshire as a bacterium. Nor, to our unending sorrow, have we found a way to double its net worth every 15 minutes. Furthermore, we are not the least bit shy about reproducing - financially - in public. Nevertheless, Sagan's observations apply. From Berkshire's present base of $4.9 billion in net worth, we will find it much more difficult to average 15% annual growth in book value than we did to average 23.8% from the $22 million we began with.

That was in 1989. Buffett has been able to maintain similar growth till now. Very few companies can maintain such long periods of growth. Most of the bigger companies cannot grow faster than GDP growth... as sum of parts of economy should always be less than the whole... investors must remember to view the projected growth of the company in relation to that of industry and economy...

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