It still astounds me how hard software distribution is. We've had so many generations of solutions and paradigms that attempt to solve this problem (e.g. C, Unix, Java, Docker, etc) but the best we've come up with is client-server applications and the web. Yet it's still not trivial to host a reasonably "powerful" web application.

In theory, the components for a universal runtime are pretty apparent by now. Wouldn't it be wonderful if truly portable and end-user friendly cloud computing was a thing.