Mature technologies
- Farming, most advances are in slight improvements of breeds or in pest reduction
- Motor vehicle, widely used by non-experts, the general principles have not changed for decades
- Telephone, though considered mature, mobile phones showed a rare potential for substantial changes even in such technologies
- Firearm, typified by assault rifle technology, most advances are slight improvements as manufacturers alter balances between weight, firepower, range, and accuracy
Technologies not yet fully mature
- Internet, with still partly conflicting technological standards
- Computers (becoming more mature due to advances in user-friendly operating systems)
- Economic models (still showing high failure rates in economic prediction)
Immature technologies
- Nanotechnology, actual industrial applications limited so far
- Manned space flight, limited, failure-prone and uneconomic
- Quantum computers, so far mostly a theoretical concept
- Nuclear fusion power, mainly theoretical in practice as containment energy expenditure thus far outweighs yielded energy
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