But then again, my phone's GPU is infinitely more powerful at 3D rasterization than the entire Bitcoin network (because the Bitcoin network can't do 3D rasteriz

But then again, my phone's GPU is infinitely more powerful at 3D rasterization than the entire Bitcoin network (because the Bitcoin network can't do 3D rasterization). My analogy might be a bit convoluted, but my point is that - as you mention - that we're comparing oranges to apples. We're comparing a general-purpose computer to doing a SHA256 hash.