The quality or state of being based on direct personal observation or eyewitness experience.
From 'autoptic' plus the noun-forming suffix '-ity,' which creates abstract nouns from adjectives. This technical term emerged in philosophical and historical scholarship to discuss the reliability of firsthand accounts.
This word lets scholars argue about whether a historical account has 'autopticity'—basically asking 'Did the person writing this actually see what they're describing, or are they just passing along gossip?'
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