# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2021-03-11 19:36:51 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1370096397802999810) In reply to: [@keefmoon](http://twitter.com/keefmoon/status/1370095684926459907) @Depthperpixel That said, when I was moaning one day about Dart not having any value types, someone challenged me to explain how an immutable object was meaningfully different to a struct, from the dev's perspective.