[tumba]

Buffet is well-known for this and I often hear tech people dismiss his views as a result, but I think some people misunderstand what he is saying.

Buffet is concerned with companies that will have a long term competitive advantage and thereby generate stable and growing cash returns over long periods. He doesn't generally invest in technology stocks because he says it is hard to determine which companies have a competitive advantage that will be durable enough to produce long-term returns.

Look at Netscape, MySpace, or Yahoo! for companies that looked valuable but ended up not having a competitive advantage. It doesn't have anything to do with "understanding" technology---the question is the ability to pick the winners in advance.