“Gaia Hypothesis (Theory)” by Living Earth Community | May 18, 2016 | Gaia Theory Multimedia Home » Ecological Worldviews » Gaia Theory » Gaia Theory Multimedia » “Gaia Hypothesis (Theory)” Tim Goodwin 2016 “Gaia Hypothesis (Theory)” This describes the basics of the Gaia Hypothesis (or theory). This video is a supplement to the book, Ecological Identity: Finding Your Place in a Biological World.