...and that time when people reinvented boolean expressions and their combinatorics under the disguise of Predicate<T> and Matcher<T>, making test errors hard t

...and that time when people reinvented boolean expressions and their combinatorics under the disguise of Predicate<T> and Matcher<T>, making test errors hard to comprehend for very little additional benefit. etc etc There is also the problem that people don't generally have a good grasp on how to use type bounds[1] correctly... I believe Go avoids the worst of it through its simple type system, but still... this complicates a language significantly. [1] https://docs.oracle.com/javase/tutorial/java/generics/bounded.html https://docs.oracle.com/javase/tutorial/java/generics/bounde...