C. Thi Nguyen

And the reason is because health is not a context invariant concept.

So she points out that what health is, is highly variable depending on your interests.

She's a great example.

She's like, okay, you go to a doctor, you're like, is my knee healthy?

And she says, look,

What a healthy knee means for a 20-year-old Olympian who has four years to train for the Olympics is very different from what a healthy knee means for me, right?

For an Olympian, knee health, what really matters is maximum performance over the next eight years.

Long-term pain might be worth it, right?

For me, I'm a climber.

Like what knee health means for me is I want to climb as long as possible so I

Long-term, this matters more.

But, you know, I'll take some pain.

It's okay.

I wake up, my knees hurt every morning.

That's okay as long as I can keep climbing.

For other people, what health might mean is to walk pain-free as long as they can, right?

So, because the concept of health is interest-dependent, it's going to vary between people.

And so no metric will capture it precisely.

Does that make sense?

So the, oh God, how did, how did, how did we get, oh, the cave, cave.