[CornCobs]

I actually think this "multi-tiered" system of OOP is quite cool, when compared to languages that stick OOP in your face upfront.

1. Basic users don't even know it's there, they're just calling regular functions.

2. S3 in base is super simple to understand and easy to extend the first time you need to implement your own summary.

3. Full blown OOP with slots and methods is available when you really need it (rare for a user and not library author imo, lists and S3 are sufficient for most things).

The big issue I see is the incompatibilities in the various systems making this "ramp up" not so smooth. But it looks like that's what S7 is trying to address so that's cool.