Comment by TKoL on Solipsism and other minds

Solipsism is interesting to philosophers not because it seems likely to be true but because it highlights in an intriguing way the fact that knowledge has no ultimate foundations. -- yes, it's a fun thought experiment. It's the sort of thing nobody serious believes is true, but it's still important to address the problem seriously in epistemological terms. It's a thought experiment, and a really powerful one, but not a serious position.