As other people point out, 2-space is not 3-space. Only weakened version of B-T work in 2-space (e.g. infinite number of pieces). Tarski, of course, was famil

As other people point out, 2-space is not 3-space. Only weakened version of B-T work in 2-space (e.g. infinite number of pieces). Tarski, of course, was familiar with his work of the year before formulating the B-T paradox when he posed this question.