Yes why are we bothering to use EUV machines to hit 25 micron drops of molten tin that are moving at 70 meters per second with two co-ordinated lasers, 50,000 times a second, to generate light in the right frequency to etch tiny processors onto tiny bits of silicon, so that we can build these machines that we are using to communicate with each other using a network that spans the whole planet ... if none of the physical world is real why have we bothered to build all that. The only conclusion is that if the physical world is not real its not real in a very well simulated way that in practical terms makes it as good as real anyway.
