 And so you can get these prion diseases by eating prions of fruit. And that's, of course, how a mad cow is transmitted. You can get it just spontaneously, and that's the most common way. Or you can get it by inheriting a mutation that makes your prion protein more likely to misfold. And the problem is that you keep on producing these prion proteins in your brain, but they also become misfolded, and that's how the disease develops. That's exactly right. So