Friday, November 6, 2009

A computer can predict what I do.

This is perhaps the most frustrating game ever. It's called MindReader and the goal is to fool the computer by randomly pressing a 1 or 0. Meanwhile, the computer is trying to "read your mind" and predict whether you're going to press 0 or 1.

The first one to 100 wins. I've played 5 times and I haven't even been close to winning. In other words, the computer has successfully out-predicted me 5 times in a row - and by huge margins.

The computer uses math; specifically a "Context-Tree Weighting Method", which the programmers call "adequate". The computer uses math to read my mind and predict what I'm going to do next. Even when I try to be unpredictable, the computer still wins.

This scares and amazes me. It scares me because it shows that I'm not so unique after all. I can be predicted. It amazes me because this knowledge can be used to predict how people will react in certain situations. It takes the uncertainty out of behaviour.

The most interesting thing is that the computer predicts my next move even before I've consciously made it. The 2 or 3 seconds of my brain's reasoning is totally useless. I should just have a computer make all my decisions for me.

In the end, it will have chosen what I would have chosen most of the time anyway.

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