I don’t think the Constitution prevents Congress from delegating precise decisionmaking to agencies of the executive branch. This seems to be a recent invention

I don’t think the Constitution prevents Congress from delegating precise decisionmaking to agencies of the executive branch. This seems to be a recent invention by people who want the US government to be even less effective than it is today. Because trust me, having Congressional staff micromanage regulatory agencies through a committee process is going to lead to vastly worse outcomes than what we have right now.