[seepel]

I’m not much of a clojure fan myself, but I think the observation is that by relaxing that last constraint of static typing (and given the other appropriate tools), that while you can’t solve The Expression Problem itself, it’s a bit easier to solve the real world problem that happened to manifest itself as the expression problem in your code.

By the way, I was also enticed by multi-methods in this area, but I ultimately don’t think multiple dispatch is necessary.

[mumblemumble]

Yes, absolutely, but doing so would be moving the goalpost right out of the stadium. The expression problem isn't supposed to describe a challenge for people implementing line-of-business applications. It's a problem for programming language researchers.