What's the actual conclusion of this article? Is it that "general purpose computing" (which is defined as...what exactly? This is an enormous space of programs!

What's the actual conclusion of this article? Is it that "general purpose computing" (which is defined as...what exactly? This is an enormous space of programs!) is not as fast as specific, fully hardware accelerated computations? This is hardly surprising, no? Of course specific things can be optimized better than trying to simultaneously optimize every program under the sun