Most Earth cultures use an international base-ten measurement system. Human Affairs Most of the Human race lives under primitive, pre-technological conditions. Ignorance, illiteracy, and poverty are the norm. In the last hexacentury, Humans have exhibited a rapid technological growth that gives many areas of Earth a standard of living that approaches Homeland. Although a sizable number of Humans either benefit from technology directly or know of the benefits of technology, anti-intellectualism is still a major factor, even in more advanced societies.
Humans remain amazingly immature, despite their rapid technological and scientific advances.
They retain a strong tendency towards social decay, and have not yet emerged from the adolescent yearning for social, cultural, and linguistic uniformity. Currently, Humans live in hundreds of nation-states, speak thousands of languages, and have a delightful variety of cultures, philosophies, and religions. Humans have not yet completely lifted themselves from their childhood desire to make everyone else conform with themselves. This uneasiness with cultural and linguistic diversity has caused the Human race to waste much in the line of time and resources by seeking a consensus where none is needed. Part of this disability must be attributed to unstable climates that result from living in a double-planet system, where agriculture is part planning and part sheer luck.