I’m not going to explain all of macroeconomics to you, but the whole point of this discussion is decreasing prices is bad because money stops moving. If money stops moving, you stop getting paid. Is that simple enough for you to understand or does it need to be dumbed down further?
fun fact, “most” real numbers have this property. If you were to mark each one on a number line, you’d fill the whole line out. Numbers that don’t have this property are vanishingly rare.