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Senorbossitronia · M
i truly think that the universe has limits. people always think as time moves forward, technology will always advance, yet look at the first civilizations. The Indus River Valley Civilization new how to build shower heads so you could poor water and get a proper shower. they also invented toilets and had running water from rivers as plumbing. Earthquakes and other natural disasters drive them away or kill them and plumbing and all that is not seen again for another 1000 years when the Romans re-invent it.