“Useful Idiot” is a political insult that describes a person who, through manipulation or not, is useful to a political cause that is not their own despite not fully realizing their role.
Society and Social Sciences is a broad category referring to the relationships between networks and groups of people, and the study of this.
An “in-group” is a group you are part of (genetically, culturally, or ideologically), while an “out-group” is a group you aren’t part of.
The left-right political spectrum is used to create a model that shows a spectrum of political positions. Traditionally there is a 2-axis spectrum of left and right, but there are also many widely adopted 4-axis model.
Conspiracy theories are sets of one more speculative hypotheses, backed by fallacious reasoning, that suppose a conspiracy.
In pop-science, in reference to the brain, you’ll hear the terms “hardwired” and “softwired”, hardwired means genetically programed and softwired means learned.
Collective intelligence is the wisdom of crowds, or the intelligence of groups, the intelligence that arises from cooperation, competition, and other group dynamics.