> not vulnerable to Goodhart's Law/Curse

CEV does not resolve Goodhart's Law. I'm really not sure you even can!

Let me give a really basic example to show you how something you might assume is perfectly aligned actually isn't.

Suppose you want to determine how long your pen is. You grab out your ruler and measure it, right? It's 150 mm, right? Well... no... That's at least +/- 1mm. But that's according to the ruler. How good is your ruler? What's the +/- value from an actual meter? Is it consistently spaced along the graduations? Wait, did you mean clicker open or closed? That's at least a few mm difference.

If you doubt me, go grab as many rulers and measuring devices as you can find. I'm sure you'll find differences. I know in my house I have 4 rulers and none of them are identical to 250um. It's easy to even see the differences between them, though they are pretty close and good enough for any task I'm actually using them for. But if you wanted me to maximize the pen's size, you can bet I'm not going to randomly pick a rule... I'm going to pick a very specific one... Because what are my other options? I can't make the pen any bigger without making an entirely new one or without controlling spacetime.

The point is that this is a trivial measurement where we take everything for granted, yet the measurement isn't perfectly aligned with the intent of the measurement. We can't even do this fundamentally with something as well defined as a meter! The physics will get in the way and we'd have to spend exorbitant amounts of money to get down to the nm scale. These are small amounts of misalignment and frankly, they don't matter for most purposes. But they do matter based on the context. It is why when engineers design parts it is critical to include tolerances. Without them, you haven't actually defined a measurement!

So start extrapolating this. How do you measure to determine "what is a cat"? How do you measure happiness? How do you measure any of that stuff? Even the warped wooden meter stick you see in every Elementary School classroom provides a more well defined measurement than any tool we have for these things!

We're not even capable of determining how misaligned we are!

And that was the point of my earlier post. These are the same thing! What do you think the engineering challenges are?! You're talking about a big problem and complaining that we are breaking it down into smaller workable components. How else do you expect us to fix the big problem? It isn't going to happen through magic. It happens by factorizing it into key components, that can be more easily understood by themselves where then we can work back up by adding complexity. We're sure not going to solve the massively complicated problem if we aren't allowed to try to solve the overly simple naive versions first.