Conspiracy theories are often sinister in nature invoking conspiracies for personal gain, most commonly used in politics.
The word has negative connotation assigning to the prejudice and lack of evidence.
Some features of the conspiracy theories-
Manipulation - An extremely powerful way of making people believe into the conspiracy.
Deceit- Another tool of winning an argument by allegedly lying or presenting false scenarios.
Circular Reasoning- The use of logical fallacy by the theorist to make the person believe in the false nature of arguments against the conspiracy stated. Hence the audience relies on the reason completely and accepts it as truth.
A sensory detail is a detail that has something to do with the 5 senses (sight, smell, hearing, taste and touch) I didn't see any examples in the question that you posted but I hope this helps
