The trickle down was never meant to trickle and if it had, the people who advocated it would not have advocated it. Its purpose, like that of the "business cycle", is to concentrate ownership.
I love it when people smugly post econ opinions that fly in the face of consensus with zero evidence.
Dude, the "business cycle" is the natural consequence of speculatively allocating resources. Sometimes people do just overestimate how much the economy can grow.
I think Will Rogers has a quote that the advantage of giving poor people money is they get to use it for a short time before the rich get their hands on it. In honest economics this is referred to as the propensity to consume.
I extend it by noting when you give the wealthy money they use it to blow asset bubbles.