Bio-Geo Planetary Node/Brain
Any planet or similar-sized, originally naturally-occurring body that has been converted and dedicated to processing tasks through Bio-Geo-Computing. Most often a Gaian-class Terrestrial world, though any life-bearing world, or one capable of being life-bearing, will do. Toposophic range and limits are uncertain. However, SI:3 seems not unreasonable. Whatever eir capabilities (actual or potential), Bio-Geo Planetary Nodes/Brains (variously called BP Nodes, BG Nodes, BP Brains, or BG Brains) invariably operate far more slowly than processing megastructures not limited to biology (which is effectively nanotech), mainly due to the lack, in a pure Bio-Geo Planetary Node/Brain, of internal wormholes.
The AI god GAIA is widely regarded as the first, and most obvious, example of a Bio-Geo Planetary Node/Brain. This may be technically incorrect, however. It is not known if GAIA, the AI god which currently occupies Earth, actually utilizes Bio-Geo Computing.
Text by Mike Parisi
Initially published on 31 December 2007.