Well the assumption of an objective external world I find a bit silly. We can assume that other minds exist since we have direct experience of our own. It's a small leap from one mind to many (a leap nonetheless).
But to assume an objective external world exists when nobody has ever experienced such a thing, is a leap of quite different proportions, akin to believing in a bearded man in the sky.
But to assume an objective external world exists when nobody has ever experienced such a thing, is a leap of quite different proportions, akin to believing in a bearded man in the sky.