According to the wiki[1]: > Interest in rammed earth declined after World War II when the cost of modern construction materials decreased.[citation needed] Ram

According to the wiki[1]: > Interest in rammed earth declined after World War II when the cost of modern construction materials decreased.[citation needed] Rammed earth was considered substandard, and still is opposed by many contractors, engineers, and tradesmen who are unfamiliar with earthen construction techniques.[7] The prevailing perception that such materials and techniques perform poorly in regions prone to earthquakes has prevented their use in much of the world.[citation needed] In Chile, for example, rammed earth edifices normally cannot be conventionally insured against damage or even be approved by the government.[citation needed] Lots of missing citations, but seems reasonable. I for one had never heard of this construction technique until today. [1] https://en.wikipedia.org/wiki/Rammed_earth https://en.wikipedia.org/wiki/Rammed_earth