# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2021-09-04 13:14:22 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1434142795124649987) In reply to: [@keefmoon](http://twitter.com/keefmoon/status/1434142475468279808) @ckieff Then one cell got subsumed inside another cell, which was probably a galactically unlikely event. And then complex like exploded and evolution went into overdrive. I think its entirely possible that has happened maybe only once in our galaxy.