Anyone interested in the ideas presented in the article might also want to check out a bit of further reading on the same topics.

A different approach to using a `noscript` element for responsive images was suggested and developed in some form by Head London in this article.

The idea of a new `picture` element to avoid the history of `img`, `image`, and `object` was initially discussed at least as far back as 2007 on the public-html mailing list: handling fallback content for still images and unifying alternate content across embedded content element types