I turned 50 years old last week: Living proof that age and maturity don't always go hand in hand. I can think of only a few things that have stayed the same over those 50 years. I've had red hair the entire time. Washington's portrait is still on the dollar bill. And, for that entire half-century, Warren Buffett was Chairman of Berkshire Hathaway (NYSE: BRKB) (NYSE: BRKA). Missed Nvidia in 2009? This Rare Signal Is Flashing Again. In 2009, a "Double Down" signal flashed for a little-known chipmaker called Nvidia. For the first time in years, that same "Total Conviction" signal is flashing for a company 1/100th the size of Nvidia.
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