I’m not convinced CL is more useful for real world usage. People sometimes fall into the trap of thinking that more features are always better. With programming

I’m not convinced CL is more useful for real world usage. People sometimes fall into the trap of thinking that more features are always better. With programming languages, that’s rarely true, because even features you don’t use cost you something — in terms of training new programmers, and every time your dealing with other people’s code. (And note here that in real-world projects, most of the code you have to modify and debug isn’t yours!) Of course it’s possible to go too far the other way, and R5RS leaves too many questions unanswered. But in my opinion, simplicity is also an important feature, not just academically, but in practice.