Roman concrete was remarkable because it could last for thousands of years, even underwater. Its mixture of lime, volcanic ash, and water allowed it to develop cracks that didn’t weaken it. When water entered a crack, it reacted with the lime to form calcium carbonate, which gradually filled the crack and bonded the concrete back together, essentially giving it a natural self-healing ability.
RAY DALIO: “It's now happening. The existing fiat monetary order, the domestic political order, and the international geopolitical order are all breaking down, so we are at the brink of wars.” Below he shares the signs of coming currency collapse.
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