in college ages ago, professor was "teaching" us overloading in C++, he goes something like this:

"so you can overload a function by changing the number of arguments, argument types, or method return type"

I dare put my hand up: "emm .. you can't overload by just changing the return type"

"you can"

"but, but.. how would the compiler know which overload I'm invoking when I call the method?"

pause..

"it depends on the type of the variable receiving the method call result"

"what if I call the method without assigning the result to a variable?"

agitated by now: "ah these are complex compiler concepts that are too complicated blah blah"

although I was unhappy, it was useful to realize no one knows everything