I'm currently studying the indirect approach to philosophical scepticism, and I'm struggling as to how you can say anything useful in this particular area of philosophy without dragging yourself into solipsism?
For example, the philosophical sceptic may argue 'How can we know there are other people that have minds?'. It seems impossible to go anywhere with this point - what conclusion could you possibly arrive from it? I find it very difficult to understand because of two conflicting notions - whilst it seems impossible to prove that there are people that have minds, it would seem an absurd and ridiculous life to lead assuming that there are no other minds except my own. So what is one to do?
Let's assume that one can't "know" that there are other minds. Does solipsism follow? It may be possible, but remember that from ignorance only ignorance follows. From not knowing whether there are other minds it follows only that we don't know whether or not there are other minds. There may not be, but on the other hand there may. Perhaps the sceptic points out that we must accept our finitude, that while we may go on to develop sciences, theories, truth claims, instiutions of various kinds, etc., we must remember that it's possible that we might be wrong, that things might not be as they seem, that our claims may not be fully grounded. Perhaps our relationship with others and the world isn't best understood in terms of "knowledge." Perhaps that's just the human condition. Keeping this possiblity in the back of one's mind vaccinates against hubris.