Well, I don't know if dualism is out-dated - it's just hard to
   avoid it. Imagine a system without an "or" -

   Let's reframe your question:

   "Monistic or dualistic?"

   What about:

   "Monastic and/or/both/either/neither Dualistic?

   Very hard to do. Our language shackles how we describe things
   that make sense through experience. [how truth and lies
   comfortably exist with each other while retaining their awkward
   union, etc].