I haven't played with the Oslo alpha bits, but my understanding on a superficial level is:
Trying to make it easier for developers to express and store their ideas in ways that make sense for the domain they are working in – i.e. domain modelling.
Trying to make these stored ideas accessible during program execution.
So yet more of the trend towards declarative rather than procedural logic. That seems to be the way the development world is moving. I'm an old fogey, and far from convinced.
But we can't continue making software like an Egyptian pyramid, with millions of bricks piled on top of each other and no structural integrity, just brute force and thousands of slaves. So we need these new ideas.