If I had that answer, I would be, you know, one of the things that I wanted to convey was, I think one of the issues with digital health in my time is that, if you're going to, my experience has been, other people have different experiences, having invested in like Flatiron, Oscar, a lot of others. If you're going to the back end of the healthcare system, it is super messy. We all know it, just the payer, provider, patient, closing the loop.
What are the loops? Where are the loops? Where are the trap doors? And it's just, you know, what are the loops? Where are the loops? Where are the trap doors? You know, there's a reason why it's whatever, 18% of GDP. Then the front end, which is D to C, you really have to build something that people love. And as trite as that sounds, you know, there's the book that I hand out to every founder is this book called Seven Powers, which is really, I think the ultimate, it's, you know, it's not just me, Daniel Ek reads it, Michael Moritz, Patrick Collison.
It's basically the business strategy book for how to start a business and build a business. And it's like, as you grow in that S curve, how does your strategy and outlook change over time? But the simple idea is that without a killer product, you have no strategy, right?
And so I think whether it be Samsung, Apple, Google, Amazon, there's all this, hey, if we connect everything, we close the loop, there's this fantastic experience. And yeah, it's a fantastic experience if you're sick, but when you're sick, you're gonna do whatever it takes to get better. But for your average user, what's the app that I can't live without? The chat GPT, the Waymo, the Google search, the, you know, even the Snapchat for young kids. And it's just really hard to, I don't know what it is. I think there's this super app idea in the same way that WeChat.
And if you look at China, I think Alibaba has come up with that app that's really powerful, but it's powerful because we're popular because it really starts with the payments. And so it's super useful, but it's also really powerful and useful because Chinese are used to the super app concept. We're not, we like our vertical apps. And so, and then you need a player, you know, if you think of all the different, you know this better than I, all the different companies, they wanna keep people in their walled garden.
Yes, they wanna build a super app for health, but they're not gonna give their sleep data to their competitor, right? They want that sleep data or their heartbeat, whatever the data is. So I wish I knew. I don't think it's a technology problem for sure. I think that even some of the local models that you could put on device lend themselves to a lot of digital health applications. But I think part of it is users. demand, which nobody has really cracked.
And part of it is that back end, which is ultimately you do have to plug into that back end. And that gets super messy, right? China, you can do it because everybody uses Alipay. Everybody uses one payment network. That's how you're paying for health care. That's obviously that's not what happens in the US. So I'm like an eternal optimist, though.
And I think we're in a better position than most because of our device footprint. You know, not just our watches, which I'm not wearing, but I have one here, the tracker, you know, our TVs, our sensors. But how long have we been saying this? Right. And I don't it's not a knock against us or Apple or Amazon. It's just as a consumer. You know, let's be honest, a big part of health is vanity. Right.
And so if you I just think that by that, I mean, like people aren't going to wear glasses or something clunky or ugly if it's going to make them incrementally healthier. But it's not really great for their lifestyle or makes them look different. Yeah. Yeah. As opposed to like chat GPT or some productive app. If you said, hey, if you wear this, your IQ is going to go up 20 points. I'd be like, OK, maybe I'll wear it.
Right. Like that's a pretty killer app. There's no I haven't seen sort of that killer app for even a. Semi broad audience, let alone, you know, there for certain verticals, there are Strava. You know, you could you can name a lot of different apps, but that's a much more narrow use case.