<p>Banach-Tarski Paradox</p>
<p>Start with 1 ball in 3D space, split it into finite number of pieces, and you can put them back together to form 2 identical copies of the original ball.</p>
<p>Banach-Tarski Paradox</p>
<p>Start with 1 ball in 3D space, split it into finite number of pieces, and you can put them back together to form 2 identical copies of the original ball.</p>