[jcelerier]

> That is the big promise and the big lie of OOP.

Well I wonder all those reusable libraries that I'm using all the time such as boost, Qt, POCO, openframeworks, etc... come from then. Am I dreaming them ?

> The medium used across systems today is data, not objects. Your objects are not compatible with systems across the wire, they need to be converted to data (JSON, XML, ...). They're not compatible with your data base, they need to be converted to data (SQL, ...)

not all code on earth is your average server app that communicates with a DB and sends JSON to the internet. I don't think I have even one installed program working like this on my computers. However I have an office suite, a lot of GUI apps, media authoring software, music player, web browser, mail client.. and they are all built with OOP languages - C++ being the one used for the immense majority - and OOP patterns.