I'm proposing that patents encourage the production and disclosure of new technology, and that the inventor has a temporary monopoly with which to re-cooperate the costs of doing so.
Still, how much you spend inventing something is not related to how useful (or obvious) your invention is. If you spent US$ 10 million developing something obvious, you still don't deserve a patent on it.
rbanffy wasn't suggesting otherwise. It was your comments that seemed to suggest that inefficient, expensive research should be more worthy of patents by virtue of being expensive.
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