How can we know if our world is virtual or not? Just looking isn’t enough. A game world seems real because when I look left, a left view is shown, and when I look right, a right view is shown. Wherever I look, it presents but the catch is, only when I look, so the observer makes it appear. In contrast, an objective reality exists whether I look or not so a physical thing shouldn’t change when it is observed differently. Yet quantum theory predicts an observer effect, that how we observe a thing changes its properties, and the evidence agrees. In delayed choice experiments, photons observed differently take different paths to a detector. The physicist Wheeler concluded that we live in a participatory universe, where what we see depends on where we look, just as expected for a virtual reality. So does our world exhibit any other tell-tale signs of virtualism?
QR1.3.1. Fifteen features of Virtualism
QR1.3.2. A Prima Facie Case