My understanding is that sunk cost fallacies are where people consider the past when they should be only looking at the future. However, the future in his case means that he has Rails knowledge X, and has Padrino knowledge 0, so looking at the future from right now, Rails still makes sense unless Padrino is so much better that it outweighs the switching costs.
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My understanding is that sunk cost fallacies are where people consider the past when they should be only looking at the future. However, the future in his case means that he has Rails knowledge X, and has Padrino knowledge 0, so looking at the future from right now, Rails still makes sense unless Padrino is so much better that it outweighs the switching costs.