Oh Noes! Something to Quibble About!
On the grand vision front, though, quite an interesting discussion of an essential aspect of material throughput in the hypothetical sustainable industrial economy, which is one pre-requisite of a sustainable industrial society. I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.
Indeed; I had known of this topic but didn't know it was quantified. Thanks for posting this Emil.
Now, I have to study how the electrons in this post will be correctly reutilized. Never underestimate their intelligence, always underestimate their knowledge.
Frank Delaney ~ Ireland