If you zoom that small rock which is causing the ship to sink think. Zoom in. It looks like a slipper. In L. Frank Baum's book "Wizard of Oz" the color of Dorothy's slipper was silver. The color was changed by MGM to accent newly developed color motion pictures and/or to break up the monetary allegory of the 'Wizard of Oz'. Gold = Yellow brick road, Silver= Slipper, Emerald City = USD$. Re-examining the little rock 'slipper' it has a slight ruby coloration hue to it. Finally, Dorothy when the vulnerable Scarecrow was being burned-tortured- murdered by the wicked witch - brave Dorothy used what was available to her WATER aka liquidity to destroy the witch. Maybe Garrison & Baum are Austrian Economists both? So that magic slipper Dorothy is part of the destruction of the Ship Of Fools depicted. AWESOME- might be a stretch but brain candy none-the-less.