On the health side, what has been the most useful change or observation you've been making that maybe a listener would be surprised to hear about what your quantification has revealed to you about you?

The number one most important thing was dialing in my heart condition because the kind of arrhythmia I have is treated with beta blockers.

And beta blockers slow the heart, and they do have side effects.

They don't have side effects on everybody that are unpleasant, but they had unpleasant side effects on me.

I felt that they interfered with my training, my running, and I felt that they made me tired.

and I did not want to be on them all the time.

But my arrhythmias were really pretty debilitating.

How do I know which one to lean in on?

On the health side, what has been the most useful change or observation you've been making that maybe a listener would be surprised to hear about what your quantification has revealed to you about you?

The number one most important thing was dialing in my heart condition because the kind of arrhythmia I have is treated with beta blockers.

And beta blockers slow the heart, and they do have side effects.

They don't have side effects on everybody that are unpleasant, but they had unpleasant side effects on me.

I felt that they interfered with my training, my running, and I felt that they made me tired.

and I did not want to be on them all the time.

But my arrhythmias were really pretty debilitating.

How do I know which one to lean in on?

So how can that average everyday woman take your processes and really like bring them down to how she can use them in her day to day?

Okay, there's a couple of answers to that question.

I really appreciate what you just said, and I want to underline part of it, which is we work in a world where there are devices everywhere, and every day there's somebody coming along saying, we can measure something that we couldn't measure before.

Those devices have a lot of value under certain circumstances, and we use them a lot, right? Glucose monitors, sleep trackers, there are activity trackers, There's all kinds of information you can get out of your heart rate.

So all of that stuff is very real.

It's very interesting.

But if you go back to the cycle, questioning, reasoning, explaining, and you focus on the question, many of the questions people have cannot be, you cannot make observations that are directly relevant to those questions with an off-the-shelf sensor.

So tell me how you would apply that to something in your life.

What do you hope is the outcome of this?

Well, that's a great question.

Sarah and I just talked about this this morning because I think we agree that the uncharted territory, the most benefit that people can get right now is in the individual help they get coping in day-to-day life.

there's a lot of techniques of thinking, reasoning, discovering things like Sarah has discovered and the stories in the book and really thousands of other examples that even just 10 years ago would have been a lot harder to learn.

And now they're easier to learn, not just because we can make observations using sensors, but even just kind of keeping the records of the observations and displaying those records in a time series graph or even just in a table where you order them from the most to the least and see the dates where things were especially bad.

All of these maneuvers, which are kind of at the bottom, of scientific practice, I mean in a good way at the bottom, foundational to scientific practice, they're more accessible to people.

And so I think Sarah and I agree that skill development, sharing methods, telling stories, this really could help people a lot.

What is time series for people who aren't familiar with it?

Uh, what, what do you hope is the outcome of this?

Well, that's a great question.

Sara and I just talked about this this morning [chuckles] um, because I think we agree that the uncharted territory, the most benefit that people can get right now is in the individual help they get coping in day-to-day life.

There's a lot of techniques of thinking, reasoning, discovering things like Sara has discovered and the stories in the book, and really thousands of other examples, that even just 10 years ago would've been a lot harder to learn.

And now they're easier to learn, not just because we can make observations using sensors, but even just kind of keeping the records of the observations, [chuckles] you know, in, and displaying those records in a, in a time series graph or even just in a table where you order them from the, from the most to the least, and see the dates where things were especially bad.

All of these maneuvers which are kind of at the bottom of scientific practice, I mean in a good way at the bottom, foundational to scientific practice, they're more accessible to people.

And so I think Sara and I agree that skill development, sharing methods, telling stories, this really could help people a lot.

What, what is time series and h- and for people who aren't familiar with it?

Can you say something more about that? Because that's the part of it I didn't get so clearly as the distinction between confidence and competence.

Okay, these are great questions, and you've plunged all the way in, and so I will not forget to answer your question about blindness to automatic behavior.

But before I do, I just want to distinguish between the way we think about evidence in biomedicine and the way we think about evidence in what I call personal science, in a personal context.

Because the role of evidence in biomedicine is to explain, investigate, and justify interventions that will be applied to many people.

And that's extremely important, right? If you're going to market a product or put a drug...

you know, into dispensaries, right? You have to really know something about how that drug is going to affect the population of people who may be using it.

So you need a certain kind of evidence, right? And we have a whole system of developing that evidence.

want to hear how your mind works when you think about these