Description of the Interactive Tool
Gigamapping is super extensive mapping across many sections, layers and scales with the goal of investigating relations between seemingly separate things, categories, and silos.
Gigamaps are tools for visual thinking and understanding complex systems.
Gigamappipng is a design tool, however anybody can gigamap. It has a very low initial threshold and lot of depth to learn and progress.
Gigamaps are process tools and not meant to communicate outside of the invovled stakeholders or owners of the maps.

PDF of the Analog Tool

Points of Strength
Gigamaps are good for sharing views, getting teams on the same page and for co-design and co-creation.