Nationwide Full Reserve law and no Central Bank vs. no regulations at all

You did. You said people holding their money in a bank would depress investment. It would retard progress.

How would it retard progress? By

No, I said artifically restricting bank lending will decrease investment.

It’s artificial because you say it is? You keep saying the same thing over and over again but in the end, it amounts to the same thing.

Money held in a demand deposit and not loaned out (that would qualify it as hoarding) is a decrease in investment according to you and detrimental to the economy. It would retard progress.

Imposed by a nationwide full reserve law it would.