Drawing surfaces extend visuospatial sketchpad
Whiteboards and other drawing surfaces provide a mechanism for offloading working memory load, essentially enhancing the capacity of the speculated visuospatial sketchpad. This might explain why sketching papers are so deeply associated with generating insight. Beyond the two-dimensional drawing surface, virtual reality has the potential of (literally) adding a whole new dimension to this. What’s more, fluid search output might also extend working memory, but using the second brain architecture, rather than a drawing surface.