Finding patterns is easy in any kind of data-rich environment; that's what mediocre gamblers do. The key is in determining whether the patterns represent signal or noise

If you aren't taking a representative sample, you won't get a representative snapshot.

When you get into statistical analysis, you don't really expect to achieve fame. Or to become an Internet meme. Or be parodied by 'The Onion' - or be the subject of a cartoon in 'The New Yorker.' I guess I'm kind of an outlier there.

The signal is the truth. The noise is what distracts us from the truth.

We are living our lives more online and you need to have different ways to capture that.

There's always the risk that there are unknown unknowns.

Actually, one of the better indicators historically of how well the stock market will do is just a Gallup poll, when you ask Americans if you think it's a good time to invest in stocks, except it goes the opposite direction of what you would expect. When the markets going up, it in fact makes it more prone toward decline.