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Egotism is holding, and maintaining, an unreasonably high view of oneself.
What's the relationship between egotism, credulism, and the certainty of belief?
That is, how much of egotism can be explained by credulism and the certainty of belief? Is the concept of the ego actually necessary to explain egotism?
Does egotism tend to decline with age because our apparent ego declines, or because our susceptibility to credulism and the certainty of belief declines, with experience?
- Egotism - Wikipedia article