> The problem is that being "flatmappable" very strongly implies that it's a container
Can't fully agree with that, although I see your point. "Mappable" doesn't imply a container more than Functor's fmap method implies that all functors are containers. And "flattening" something is basically Monad's join.
But still, even if "FlatMappable" has a strong container connotation, I think it's good enough for establishing a first intuition. I think that once one shows what flatMap looks like in terms of e.g. Promises, the notion that it's about arrays or containers will vanish pretty quickly.
Can't fully agree with that, although I see your point. "Mappable" doesn't imply a container more than Functor's fmap method implies that all functors are containers. And "flattening" something is basically Monad's join.
But still, even if "FlatMappable" has a strong container connotation, I think it's good enough for establishing a first intuition. I think that once one shows what flatMap looks like in terms of e.g. Promises, the notion that it's about arrays or containers will vanish pretty quickly.