From slashbot.
...computers are built from something other than matter and occupy something
other than space...

You could actualy argue this (well I could). See, a computer has its physical hardware, yes, but tell me, where is the software? It has a representation in space and matter, but the actual alogrithm? the logic? the ideas? well...

You know why I like maths? Well one of the reasons is that it's always right. And it always has been. And it always will be. Because the angles of a triangle add up to 180: if they didn't it wouldn't be a triangle. The derivate of e^x is e^x, because that's waht e means. In science, your theories change constantly because they have their basis solely in the physical world: science cannot be separated from the world we perceive around us. Maths has isomorphisms in the physical world, but even if there were no physical world, it would still be. And it would still be true, and still right, and, at the risk of appearing completely eccentric, beautiful.

(who has never cared that other people think she's strange)