Could humanity survive in a closed box?

Energy cannot be created nor destroyed. Humans require energy (food) to operate, but that energy must return back to the environment one way or another.

If given an unlimited supply of handwave material which does not absorb/emit any energy whatsoever, could we construct a box where humans could live indefinitely in a closed system?

Details

• I would like to use the most primitive technology possible; current technology preferable
• You can make any assumptions you want about the material of the box (i.e. massless, infinite strength, etc.)
• You can put as many people in the box as you want (including just one person who lives forever), and have them follow any rules you want (population never exceeds X, etc.)

posted over 7 years ago

Ovi‭

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