At first glance it seems like an amazing language. Very few basic building blocks, and yet it manages to capture a good deal of the advanced features of modern

At first glance it seems like an amazing language. Very few basic building blocks, and yet it manages to capture a good deal of the advanced features of modern languages. Nice, parsimonious syntax too. I especially like the Rubyesque way blocks are passed to functions. Couple of things I imagine might bother me: * Lack of upwards funargs. The reason stated is performance. I realise that it's complicated to implement, but it might be possible to start out with cheap blocks and promote them later to full closures if necessary. * Reference cycles as an error. It's pretty easy to create these in legit circumstances. Maybe something like Python's auxiliary GC could be useful here.