This came from reading today's item from Ainslie Bullion. I understand what the term means, but I'm having trouble identifying truly uncorrelated investments. I could accept that gold and stocks are uncorrelated for the sake of argument, though they aren't completely decoupled, are they? Are there any investments that are uncorrelated, really? I don't just mean in a negative sense, because if asset A tends to rise when asset B falls, that's still a correlation.