When I dip into little histories of how one thing or another came to pass (example: ten days to design Javascript) in our history of computing, I wonder if advanced civilizations do things like undertake mind-bending projects like, "Hey, let's redesign our computation from scratch, from Turing (or whatever They call it) machines on up to processors to implement these machines, and on up."
A language would be next, and with it the idioms.
HTML, starts off as a markup language for document display (and a fairly primitive one) but has morphed into an application-over-the-Internet, by adding CSS, Javascript, and so forth. What if the aliens designed a technology with this endpoint already in mind? After a few hundred years, they probably have a full list of controls (radio buttons, checkboxes, dropdowns, sliders, and so on).
I just have this terrible feeling that everything we have is built on layers of cruft, "I need this by Monday" decisions, not-quite-optimal algorithms, and so on. And that we're probably wasting enormous amounts of computation and energy on this. Just think of how much invalid HTML is out there, and how much harder each browser must work to figure out the tag salad.