The point of a patent is to ensure that ideas are made public, so that all can benefit from them. In exchange, the inventor gets their time-limited monopoly on

The point of a patent is to ensure that ideas are made public, so that all can benefit from them. In exchange, the inventor gets their time-limited monopoly on the idea. Unfortunately software patents are useless for this purpose: they don't fulfil the function of making ideas public. Who, in this day and age, refers to a patent for the details of an algorithm? I would argue that open-source software, in many ways, succeeds where software patents fail.