# Environment A is created here

# outer references environment A
def outer() do
  # Environment B is created here referencing A

  # middle references environment B
  def middle() do
    # Environment C is created here referencing B

    # inner references environment C
    def inner() do
      # This is never executed
      42
    end

    inner
    # At this point, environment C falls out of scope
    # However, environment C is still referenced by inner, which is being returned
  end

  variable = middle()
  # Now environment B -> variable -> inner -> C -> B

  42
  # Nothing from the cycle is returned and B falls out of scope
  # All references are lost, but reference counts are still > 0 because of the cycle
end

print(outer())