Some philosophy is rubbish. Quite a lot, I believe. And with a statement such as “perceptions are caused by things external to the perceptions themselves”, which I find unremarkable in itself as a prima facie obvious hypothesis to run with, there is a tendency for philosophers to go off the rails immediately by inventing precise definitions of words such as “perceptions”, “are”, and “caused”, and elaborating all manner of quibbles and paradoxes. Hence the whole tedious catalogue of realisms.
Science did not get anywhere by speculating on whether there are four or five elements and arguing about their natures.
Some philosophy is rubbish. Quite a lot, I believe. And with a statement such as “perceptions are caused by things external to the perceptions themselves”, which I find unremarkable in itself as a prima facie obvious hypothesis to run with, there is a tendency for philosophers to go off the rails immediately by inventing precise definitions of words such as “perceptions”, “are”, and “caused”, and elaborating all manner of quibbles and paradoxes. Hence the whole tedious catalogue of realisms.
Science did not get anywhere by speculating on whether there are four or five elements and arguing about their natures.