> A theorem is a program we run on our wetware, and if a given wetware runtime doesn’t support the memory or time requirements for a theorem, it won’t run corre

> A theorem is a program we run on our wetware, and if a given wetware runtime doesn’t support the memory or time requirements for a theorem, it won’t run correctly. You can use a theorem without "running" it, though. The classification of finite simple groups took thousands of pages to prove; it would be pretty inconvenient if you had to read all those pages to use the theorem!