Hi, everyone. Welcome to the A6 and Z podcast. I'm Sonal. Today we have a really interesting topic, which is all about wearables, quantified self, biohacking, and all three of those are actually related concepts. And joining us to have this conversation, we have Rachel Kalmar, and she is currently at the Berkman Klein Center at Harvard University. And I actually met Rachel a few years ago when she was at Misfit and I was at Wired and Misfit was a wearables company. And the thing that struck me most, Rachel, was that you had like six watches on each hand or like some number. I think my peak was 38 devices that I wore every day. I'm down to like seven now, which is a very reasonable

amount. And then we have Jeffrey Wu, who's a co-founder and CEO of NeutroBox. Last but not

least, we have Gary Wolfe, the founder of the quantified self movement. Welcome, guys. I think the

first thing is like, why do you guys care about this topic, I guess?

Yeah, I care because our humanity, our system is the most important asset that we have.

And by system, you mean a body.

Our body, yeah. I think we all want to live longer. I mean, I think this is a very human instinct, Cortez, finding the fountain of youth.

And I think what's interesting with quantified self,

measuring biometrics, biohacking is that we finally now have the tools and the sensors that

actually quantify and measure the inputs and outputs of the human system. So let's apply

engineering perspective to the human biology. That's an interesting way you're framing it.

And Gary, I'm curious to hear your thoughts.

You're the one who coined the phrase quantified self.

How did you think of it?

Now in daily life, we can apply some techniques that used to be really professional

techniques that engineers and scientists would use, but were very difficult for most people

to use. These have been

packaged into software. Even just storing the data is a lot easier. So much easier to track

what's going on. So all of this empirical toolkit is now available to us when we want to think

about something. And yet we actually don't know very much about

what works and what doesn't work, even in improving the daily aspects of our lives,

never mind kind of the impossible dreams that are in front of us. And so by a daily aspect,

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