people are doing FP, or using ideas originating in FP without even knowing it: * Java/C# generics * sealed interfaces and record classes * pattern matching

people are doing FP, or using ideas originating in FP without even knowing it: * Java/C# generics * sealed interfaces and record classes * pattern matching * first-class functions with closures * even type system itself (eg Python is gaining a type system) * ... The world of programming languages is converging, no matter how slowly, towards ML https://www.cs.cmu.edu/~rwh/talks/mlw13.pdf https://www.cs.cmu.edu/~rwh/talks/mlw13.pdf