Actually, 70% of the price of gold is tied down to its real world usage. I was surprised too - I actually thought it was only around 10% when I made that commen

Actually, 70% of the price of gold is tied down to its real world usage. I was surprised too - I actually thought it was only around 10% when I made that comment. But what I was referring to was that simply having some significant non-psychological value was key for giving people the stability and confidence to invest more value in it. In which case, the difference between 10% non-psychological value and 0% non-psychological value is something on the order of an infinity percent relative difference.