Here's why:
* Precursors: While Wenner revolutionized the art form, there were artists before him who created illusions on pavement. For example, Edgar Mueller, who started creating similar works in the 1980s.
* Evolution: 3D sidewalk art has evolved significantly over the years, with artists developing new techniques and perspectives. Wenner's contribution was his unique approach to creating large-scale, highly detailed, and photorealistic illusions.
* Popularity: Wenner's work gained widespread recognition and brought the art form to a global audience, making him a key figure in its popularization.
Therefore, it's more accurate to say that Kurt Wenner significantly contributed to the development and popularization of 3D sidewalk art rather than inventing it entirely.