If spice is supposed to be a plants method of defence, why does it taste good?

Question

If spice is supposed to be a plants method of defence, why does it taste good?

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Answer 1

I always thought of it like this: the purpose of life is to propagate and procreate. If we, as the top of the food chain, have decided something is bad we will work to get rid of it – poison ivy/oak/sumac…. If we decide something is good we will harvest and plant it again – peppers, saffron, etc. There’s also the beauty aspect of it, if we like something for its esthetic we will keep it around – orchids (they give us vanilla too) and other flowers.

Edit: spelling and grammar