Things are interacting on a chemical level, and chemicals that come into contact with other chemicals have some predetermined effects. For example, putting vinegar and baking soda together results in a bubbling volcano. Now of course there’s ways to mitigate undesired effects, but not all of them. You could maybe coat the baking soda in a hydrophobic material preventing it from coming in contact with any vinegar, but now the baking soda is basically inert and cant do the job it was meant to do.
Its a tradeoff getting something good enough that prevents something worse than the side effects.
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