Yeah, it shouldn't be unsolvable; my key thought is that it's actually the hard part of the story now (encryption client-side is pretty well-understood) and is under-solved. Even still, having more options in the world is better than having fewer, so I'm excited about this demo.
I think my choice of words left me open to misinterpretation: the "you... and...." phrasing was meant as synonymous with "If you... then...", not as a categorical claim that I believe the UX is unsolvable.
