* All programming languages suck. We are not there yet as humanity. I can not think outside of the box enough to make the breakthrough that should be made, at least as of now. While looking at other programming languages, I see the same issue: inability to express thoughts in concise and straightforward manner. Unsolved issue.
* The only idea in programming that I consider definitely good is pattern matching. Note that I'm talking about the concept here. No particular implementation strikes me as "yep, this is it": be it limitation to strings only (regex) or syntax-only implementation (preventing composability of the patterns) or some other sh*t.
Have a nice weekend!