Worth their weight in gold is a common way of saying that something is very valuable. Are you an Aspie? You're being far too clever/literal, reading too much i

Worth their weight in gold is a common way of saying that something is very valuable. Are you an Aspie? You're being far too clever/literal, reading too much into his statement with your weight of a great idea = 0 therefore worth = 0 calculation. The natural and much easier interpretation of what he wrote is that good ideas are common as muck, whereas great ideas are of great worth. You really have to go through some quite unnatural contortions to arrive at the conclusion you did; that he said all ideas are worthless. BUT You may be right, he may have been trying to have some subtle play with words. If so, I apologise. However, it isn't the way his statement would normally be read.