There is a lot of hype surrounding big data, and a lot of companies don't have it or need it. Allison Schrager has written for Reuters of whether or not we should be putting so much faith behind big data.
One year I spent a lot of time with professional magicians. A few showed me the secrets to their tricks. Whenever they did, the skill and dexterity required for sleight-of-hand struck me as far more impressive than the idea that magic had been performed. It reminded me of my own experience with statistics.
Data analysis is very similar to performing magic. With great skill you can pull things together and create the perception of surprising relationships. Often the magic is getting people to look at one thing, when they should be seeing another. Similarly with statistics, it’s often not the correlation that’s interesting but what you did to find it.
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