to_nil is actually a pretty important function! Completely trivial, obviously, but it demonstrates that there's a canonical way to map every value in Ruby to ni

to_nil is actually a pretty important function! Completely trivial, obviously, but it demonstrates that there's a canonical way to map every value in Ruby to nil. This is essentially the defining feature of nil, in a sense. With typing the interest here would be more clear, of course, since it would be more apparent that nil inhabits every type.