A communicative chain connecting an agent to an object—where other agents in the chain have perceived the object—constitutes sufficient grounding for direct thought about that object.
Perceived(means that someone in the chain has actually encountered the object themselves)
Directly experienced through the senses—seen, heard, touched, or otherwise directly encountered.
Sufficient
# Sufficient
Something is sufficient when it is enough to achieve a goal or make something true. For example, having a valid driver's license is sufficient to legally drive a car—you don't need anything else. In everyday language, we use "sufficient" to mean "adequate" or "meeting the minimum requirement needed."
agent(Economics terminology applied to medical ethics)
The party in a principal-agent relationship who is instructed to produce the good or service on the principal's behalf — in the medical context, the doctor
communicative chain(Neo-Russellian account of singular thought without personal perception)
A sequence of communicative acts linking a present agent back through other agents to an original perceptual encounter with an object, grounding the present agent's ability to refer to or think about that object.
Strawson maintained that an agent can demonstratively identify only objects that she has perceived. Neo-Russellians typically go a step further, claiming that an agent can think directly about objects she has not perceived in virtue of standing in the appropriate communicative chains ending in the object. So, even though you have never perceived Plato, we will safely suppose, you can nevertheless think directly about Plato in virtue of your standing in a communicative chain that ultimately trace