In this scenario, you are one of innumerable minds living the exact same life you’re living now, each one certain they are a unique individual, and each one the exact same person – you. This is the most likely scenario. You have no body, just a brain, and instead of a spinal cord and sensory receptors projecting an external world onto your internal screen, you have a cable connecting you to a media player; the digital version of Descartes’ Evil Demon.

