Dym Sohin , @dym (open profile) bi-ex is twice an ex, or once every two ex'es? Open thread at this post
![a flat disc, smoothed colored [red yellow green blue rose] radial-rays gradient, with a gray circle in the middle](https://dym.sh/fileserver/01NMEQ3XQFZ26HP4ZXP12HVBDV/attachment/original/016PZ11CP5YZV82MN3608C1YZE.png "a flat disc, smoothed colored [red yellow green blue rose] radial-rays gradient, with a gray circle in the middle")