# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2019-06-25 14:12:59 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1143522479014592512) So, UICollectionView has a strong reference to it's layout, and UICollectionViewLayout has a strong reference to it's collection view. 🤔 How doe this not lead to a retain cycle? https://t.co/rADtJqPk52