found this post about the duberger scale model via a recent thoughtbot article on modeling[0]. [0]: https://thoughtbot.com/blog/models-that-match-reality https

found this post about the duberger scale model via a recent thoughtbot article on modeling[0]. [0]: https://thoughtbot.com/blog/models-that-match-reality https://thoughtbot.com/blog/models-that-match-reality , which i would qualify as being fairly basic and which in turn was found via https://rubyweekly.com/issues/574 https://rubyweekly.com/issues/574 .