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A comment on How are Rome's monuments still standing?. Parent comment

Re:How are Rome's monuments still standing? by imtringued on Tuesday December 21, 2021 @06:42AM (#29636414)
Aliens are incredibly unlikely. The Egyptians had grain money with demurage fees which encourage hundred year+ projects. Anything they did had a discounted future value that was higher than present value. Building something that lasted 4000 years was economically viable for them.
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Re:How are Rome's monuments still standing? by kmonsen on Tuesday December 21, 2021 @12:43PM (#29639898)
Right, of course aliens are extremely unlikely. The reason it is even talked about is because there are few convincing explanations how the Egyptians could theoretically have built the pyramids at that time.
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