I am talking about gadgets we see in science fiction movies that obey the laws of physics of our universe and could theoretically be constructed, barring the limitations of materials, energy and time faced by our civilization at the moment.

      • QuinceDaPence
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        52 years ago

        And in a cost effective manner. Were almost to where it might start being possible, depending on the mineral.

      • @Dagwood222@lemm.ee
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        32 years ago

        You’ve got unlimited solar energy and robot technology is getting better every day. People have been working on the problem for decades.