OT Re paper profits--Is it different, actually? I own a smaller percentage of BRK than Warren does, but my share is in the same form his is. And when Forbes does their Richest Men list, they value Warren's and Bill's shareholdings at the same market price they value mine. In fact I would say that my holdings are more liquid--and therefore more "real"--than theirs. I can sell all my holdings in either company and have no affect on the share price. Let them try to do that! :o)
I hear your point about "control", but my holdings (with a couple of deliberate exceptions) are profit-producing. So that aspect is the same. And remember that about a third of BRK's share price is determined by the value of its common stock holdings in K, American Express, etc., where he doesn't control management.
Anyway, this doesn't affect the decision on holding Rambus, I think. And at this point in R's development, I would hope that no one has a significant portion of their net worth tied up in this company. As much as I believe the technology will succeed, the emphasis is on future performance, not current success. And that makes it continue to be a bit speculative.
Best, JS |