In Integral Theory, Flatland is "...the attempt to reduce interiors to their exterior correlates (i.e., collapsing subjective and intersubjective realities into their objective aspects). This is often seen in systems approaches to the natural world, which represent consciousness through diagrams of feedback loops and in the process leave out the texture and felt-sense of first- and second-person experience."
- Sean Esbjörn-Hargens, Ph.D. (2009). AN OVERVIEW OF INTEGRAL THEORY: An All-Inclusive Framework for the 21st Century. Integral Institute, Resource Paper No. 1, March 2009, pp. 4.