# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2019-05-29 12:11:19 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1133707389096681472) In reply to: [@keefmoon](http://twitter.com/keefmoon/status/1133707329743069186) @OKftl @ethan_ring @reblavoie @katriord I think we will eventually find extraterrestrial “life” but it will be no more complex than algae. I suspect that the Eukaryotic event, where simple cells became complex cells, was a “great filter” that hasn’t happened anywhere else in this galaxy.