My own conviction is that semiotics provides an escape from the solipsist prison by its stress on the social origins of language--you have to point to an apple and name it for me before I know there is such a thing--and the existence of a world of apples outside ourselves.
In "Lost in the Cosmos: The Last Self-Help Book," Walker Percy discusses the importance of semiotics, or the study of signs and symbols, in understanding the nature of language and reality. He argues that language is inherently social and requires interaction with others to acquire meaning. For instance, one must see an apple and hear it named before recognizing its existence, illustrating that knowledge is not solely an individual experience.
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