Solipsism
Fleeting- External reference: https://en.wikipedia.org/wiki/Solipsism
Solipsism - Wikipedia
Solipsism (ˈsɒlɪpsɪzəm (listen); from Latin solus ‘alone’, and ipse ‘self’) is the philosophical idea that only one’s mind is sure to exist. As an epistemological position, solipsism holds that knowledge of anything outside one’s own mind is unsure; the external world and other minds cannot be known and might not exist outside the mind.