The tendency of gradually improving systems to undergo a sudden large increase in functionality, becoming universal in some domain. The first Universal System we know of was DNA. All organisms on earth are encoded with the same alphabet of DNA bases, just using different combinations.
People
Entities that can create explanatory knowledge. People don't necessary need to be human. The term also encompasses creative aliens and in the future, artificial general intelligence.
Person
An entity that can create explanatory knowledge. A person is a form of a Universal Explainers.