Basically, the law predicts the time required to point to a specific area using any type of pointing device. Proposed in 1954, the idea has withstood the rigorous test of time. Additionally, it is able to be applied over a wide range of devices. It first applied to very simple pointing devices that were used in the 50's. Today, the same ideas still hold true to stylus devices on multi-touch screens. Unfortunately, there are many interfaces that are designed which completely ignore Fitt's Law.
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