Type 0

A Type 0 or K0 civilization extracts its energy, information, raw-materials from crude organic-based sources (i.e. food/wood/fossil fuel); pressures via natural disaster, selection, and societal collapse creates extreme (99.9%) risk of extinction; societies that fail to improve social conditions, environmental and medical understanding concurrently with other advancements, frequently accelerated their own extinction. Goes through multiple industrial revolutions and is eventually capable of advanced computing and orbital spaceflight. 21st-Century Earth is a Type 0 civilization.

Detail
Energy usage: 106 W to 1016 W. Metabolic. Water and wind. Combustion. Electricity. Fossil fuels. Gas and oil. Fission.

Estimated Population: Up to 10 billion people (1010)

Existence is in 3d (conceptualized 4d) and 1r (reality)

Travel: Local area; continental; close interplanetary space travel.

Quality of life (government): Tribal, Theocracy, Monarchy, Democracy

State of forms: single, biological

WMD scale: nuclear fission and nuclear fusion

Longevity: 35-100

Social issues: Colonization, Religion, Automation, Air pollution, Use of biotech and gene manipulation

Industrial revolutions: Agriculture, Industry

Computing: kiloscale (103) in early computers, to zettascale (1021) in global weather prediction.

Arguments: Gender, Race, Class, Religion

Dominant proliferation: ordinary biological reproduction

Social weakening: famine and disease without proper mitigation capacity (solution: biotech agriculture and medicine)

Social dream: Global cultural dominance

Class system: Proliferated by current ruling class with heuristics (e.g. consent of governed) to allow coordination