Perpetual vague unformed irritating idea:
An desktop-to-Internet scalable Functional Reactive network where you reference or construct (as opposed to receive and send) immutable but *not* opaque binary , from an address chain of nested 64 bit address spaces.
I'd, eg, like the fundamental 'object' to be usable for everything from mouse events to blog entries to video frames.
Can't get my head around how construction works, though, without mutation.