Deflation? Is that where money is worth more in the future than it is right now? That would seem to be the only system that makes any sense whatsoever, since people inherently have more desire for good right now than in the future. Next you'll be attacking positive interest rates. The 'growth' you speak of is not true growth at all, but merely an illusion that will collapse along with the rest of the house of cards. If printing money can truly grow an economy, then shouldn't counterfeiting by legalized? Also, you ought to relook at your history, since the period between the Depression or 1920 and the Great Depression was inflationary, not deflationary. It was only when the 'growth' you talk about led people to malinvestments did the Great Depression start, along with the deflation that accompanied it as a result, NOT a cause. With regard to the amount of gold in the world, obviously one cannot restore the dollar-gold link to the link it had prior to 1913. You would have to start at the current conversion ratio.
Actually 'malinvestments' are inherent in the capitalist system, SPC, and of course by that we can only mean an inadequacy of demand (insufficient consumption).
And certainly positive interest rates are a part of this problem, or indicative of it - concentration of 'wealth'. In other words an inadequacy of demand.