= Metaphysical solipsism
{wiki=Metaphysical_solipsism}
Metaphysical solipsism is a philosophical idea that asserts that only one's own mind is sure to exist. In this view, knowledge of anything outside one's own mind is considered uncertain; the external world and other minds cannot be known or may not exist at all. Essentially, it posits that the individual self is the only certain reality, and everything else—including other people, objects, and the physical world—exists only as a representation or perception within that individual's consciousness.
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