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  "body": "\n## Summary\n\nAn indecomposable continuum is a [[continuum|NJQ196M1WR]] that is not the union of two proper subcontinua.\nFamiliar continua such as arcs, circles and discs are decomposable, so the indecomposable ones are a source of strange examples.\nThey appear in plane topology, as common boundaries of domains, and in dynamics, as attractors.\n\n## Explanations\n\n### L1 human\n\nThe interval $[0, 1]$ is the union of the two smaller pieces $[0, 1/2]$ and $[1/2, 1]$, each a continuum.\nAn indecomposable continuum cannot be cut up like this: any two smaller continua inside it leave something out.\nPictures of them look like infinitely many strands wound back and forth, such as the Knaster bucket handle.\nThe [[pseudo-arc|VGCTDCGS6V]] is an extreme case, where every subcontinuum is again indecomposable.\n",
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