You're denying there isn't any scarcity! Well I must stop here. Once you come to realize there is, we can have this discussion again. There's a reason you're sticking to food examples because you couldn't think of any other. As far as your examples of American grains are concerned, if they are true they must be seen in the context and taken as an exception because they're an exception. And they didn't bust the fact that there is scarcity. Instead of blindly taking the word of Islamic economists, whoever they are, take your time to think about it.

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He that increaseth knowledge increaseth sorrow (Ecclesiastes 1:18)