Believe it or not, no aliens were likely involved! Just some very smart humans and a massive amount of labor.

  • @CanadaPlus@lemmy.sdf.org
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    7 months ago

    We know several ways it could have been done, and we could do it ourselves for a sliver of the cost. It’s a matter of historical preservation that we’re not sure which they chose.

    • @geography082@lemm.ee
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      27 months ago

      The uncertain of this specific case and a few others against other thousand of history remains is what makes wonder