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Close encounters of the Java Memory Model kind
(shipilev.net)
For those who haven't seen it before and are interested in writing concurrent algorithms or data structures in Java, this is an excellent read on the potential pitfalls you can fall into reasoning about memory ordering in Java.
Goes without saying that you need a really good reason to actually write such code, but for those who are curious or, God forbid, have to maintain code like this it's a really useful read.
I mean if youre going to think of it that way any Turing complete language fits the bill, but what I mean by universal is a language you would reach for to solve any problem you have and it would be better than any other language. It's not a computer science problem it's a software engineering problem.