4GL solutions are one way to attack the problem of scaling and maintaining large applications. However, you tend to end up with a traditional code base and a re

4GL solutions are one way to attack the problem of scaling and maintaining large applications. However, you tend to end up with a traditional code base and a relational database, without a strong core specification. Especially once you start customizing an application like that, you run into the same problems as a 3GL stack. Alan plays a longer game, with a drastically different approach to specification and development of applications of any level of complexity. Models drive everything and you can't look "under the hood" to look at or modify the implementation. Even at the level of the platform itself, models and code generation drive down the amount of 3GL code we have to deal with. WYSIWYG editors and drag-and-drop UI builders aren't a starting point, it's something we might grow towards supporting in the future.