Streams

So, to lead into this: Scala, despite being a quasi-functional language, doesn't have much laziness support. There is a lazy keyword, and you can have lazy arguments, but by default everything is eager including 99% of the collection functions. Why is this a problem? Because I've changed my mind and decided that instead of returning the first answer to my question, I want all possible answers; except I don't want to pay the price of computing all possible answers until I actually need them, ergo I want a lazy collection. But in order to get my lazy collection, I have to convert my entire API over to Streams, which is the one token lazy sequence in the entire Scala standard library. And it's a hassle!
Clojure, on the other hand, has almost everything set to lazy. Many was the time that I thought: "Hmmm... this would be so much more convenient if I were using Clojure." For whatever reason, I did not listen to myself.
But it's not too late. Perhaps I will make a hybrid project of Scala and Clojure. I'm not sure how difficult that would be, or even if it is possible at all. Maybe it'll be too ugly. Alternatively I could just convert entirely over to Clojure... but that seems like wasted effort; I don't want to keep reimplementing projects in different languages -- throws away too much work. Lastly I could just bite the bullet and use Scala's damn nasty Stream crap, and live with a duplicated API for streams and not-streams.
Something to ponder.