This document appears to be notes from a lecture that discusses GIS technology and its limitations. The lecture notes cover topics like mathematical logic used in GIS, data distortions possible with GIS, how GIS symbology can mislead, that GIS reflects the society and technology of the time, and how GIS has evolved from being used primarily for top-down decision making to also support more participatory approaches through PPGIS to improve accessibility. The notes also mention mental maps and the duality of how GIS can be used.