Technology Levels in Society
Societies may be classified according to the highest technologies in common use, though of course every higher technology society contains elements of simpler technologies. While most of the Civilized Galaxy is based on High Tech, societies based on other tech levels — from the lowest primtech to the highest transapientech — can be found throughout the Terragen Sphere. Ever since the advent of the First Singularity, the design and control of the highest tech levels has been out of the hands of ordinary sapients and their organizations. For societies dependent on those technologies, the effects of this may be profound.

- Galaxy Brain - Text by M. Alan Kazlev modified from Anders Sandberg's Transhumanist Terminology
A form of distributed intelligence; an intelligent being with parts spread across an entire galaxy. If not linked by wormholes, the internal communication lags would be on the order of tens of thousands years.
- Kardaschev Types - Text by M. Alan Kazlev
Classification of civilization types according to energy usage.
- Rif - Text by M. Alan Kazlev
A ludd, an opponent of ultratech. Sometimes also applied to prims. [From Rifkinite, from Jeremy Rifkin, early Information Age opponent of genetic engineering and nanotech.]