#37 - Three Breakthroughs: Search 2.0., Advances in Exo-Suits, and These New Blood Tests Change Everything
8 Aug 2024 · 30 min
In this episode of The Tech Optimist’s “3 Breakthroughs” segment, host Sam Herrick chats with Alumni Ventures founder and CEO Mike Collins and managing partner Matt Caspari about three technology trends they view as transformative. First, they argue that traditional keyword‑based Google search is being supplanted by AI‑driven, answer‑focused “Search 2.0,” illustrated with a personal example of using ChatGPT to summarize a New York Times article on yogurt and retrieve fact‑checked product recommendations. Second, they discuss a recent Science Robotics paper from Seoul National University describing the Bilateral Back Extensor Exosuit (BBEX/BECS), a lightweight soft‑robotic exosuit that monitors posture with wearable sensors and provides real‑time lumbar support, showing measurable reductions in muscle strain during lifting tasks. Third, they explore rapid advances in blood‑based diagnostics, focusing on p‑Tau217 assays for early Alzheimer’s detection, multi‑cancer screening panels, and other preventive biomarkers such as calcium and lipid tests. The conversation weaves in market dynamics, venture‑capital relevance, regulatory status, and the broader shift toward low‑friction, preventive healthcare. Throughout, the hosts sprinkle sponsor messages and occasional humor, but the core narrative emphasizes how AI, soft robotics, and blood diagnostics are reshaping work, health, and the future of search.
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So you're telling me Google is outdated, someone made an Iron Man suit, and blood tests can tell me even more than ever before?
Huh.
Being really good at that tool has proven to be really a professional attribute.
So depending on your posture and what you're doing, this exoskeleton provides real-time support.
Hand in glove, I think that that's really exciting that we're finally starting to see it on, you know, one of the most terrible diseases that our society has to, to deal with.
All right everyone, you know the drill. Welcome back to this episode of The Tech Optimist, 3 Breakthroughs. Now the voices you'll hear today are from Mike Collins, as always, founder and CEO at Illumina Ventures, and his partner today is Matt Caspari, a managing partner also here at Illumina Ventures. And of course, as always, you'll hear me Your tech note writer, your guide, your narrative savant, Sam Herrick. Let's get into it. In a world captivated by criticism, it's easy to overlook the groundbreaking technologies shaping our future. Let's shine a light on innovators who are propelling us forward. As the most active venture capital firm in the U.S., we have an exceptional view of tech's real-world impact. Join us as we explore, celebrate, and contribute to the stories of those creating tomorrow. Welcome to The Tech Optimist. As a reminder, The Tech Optimist podcast is for informational purposes only. It is not personalized advice, and it is not an offer to buy or sell securities. For additional important details, please see the text description accompanying this episode.
I'm good. Okay. Looks like you got a little sun.
I have been getting some sun. It's nice. Yeah.
Good.
We're in the south of France for a few days, so got a lot of sun in a short period of time.
All right. Ready to hop in? I'll let you get back to better things.
Yeah, I'm ready.
Okay, so welcome to the Tech Optimist Podcast, our 3, uh, Breakthroughs segment where we talk about things that we're really excited about in the world of, uh, science and technology. I'm here with my partner Matt Caspari. I'm Mike Collins, the founder and CEO of Alumni Ventures, and I think I'm kicking it off this week and My breakthrough of the week is I'm calling the end of search.
Okay.
So, I think one of the fantastic things that Google, Alphabet has done is they've just made it such a part of white-collar work that actually, You know, being really good at Google is a differentiator in a lot of white-collar jobs. I think it's, you know, how people do research. I think how they get a lot of things done during the day. It's, I'm gonna Google it. And, you know, being really good at that tool has proven to be really a professional attribute.
What we slowly found is the purpose of these tech notes is for my curiosity to flourish and really develop into what it is, right? So a thought popped into my head. I was like, huh, I wonder like if there are any crazy Google stats out there, you know, like how many people use it a day, how many searches there are. And of course there are stats out there. Some of these are directly from Google themselves. Some are from, um, Some people that worked at Google on Reddit, and then also some from a website called Semrush, which also has a lot of Google search statistics on there. So Google processes approximately 8.5 billion searches per day. This breaks down to about 5.9 million searches every minute. The total number of Google searches per year is estimated at 3.1 trillion. And 63% of these searches in the US occur on mobile devices, meaning, you know, they're coming from cell phones instead of from desktop computers. In terms of search query length, the most common Google searches contains 3 to 4 words, specifically 38.2% of US Google searches on desktop and 39.9% on mobile fall into this category. So Google Search Index, which is used to provide results for all of these daily searches, is over 100 million gigabytes in size. So let's, let's think about that for a second. So the iPhone, the most common storage size for an iPhone, like the phone that's either on your desk or on your dashboard while you're listening to this or in your pocket, It has about 64 gigs of storage on it, right? You also can upgrade to get 128 or 256 if you really feel like it. 100 million gigabytes. Let's try and sort of quantify how large that is, right? So let's take a blockbuster movie, for example, like Dune that just came out recently, or Oppenheimer that came out, you know, just about a year ago. A fantastic, very high quality, You know, borderline 6K footage that landed just about 3 hours with IMAX, you know, IMAX screens. From what I've been seeing, since it's an actual film, when it was digitized, the 4K digital version of Oppenheimer is likely around 400 to 430 gigabytes in size. So meaning if Google was just a storage device, Right? It could hold 250,000 copies of the digital Oppenheimer movie. That's, that's big. That is pretty insane. And yeah, all right, there's my little tangent. Let's get back into the interview.
And it's obviously evolved a lot. I mean, I go back to when there was multiple search engines and, you know, Google.
I remember those days.
Yeah, AltaVista. Yeah, yeah, all this stuff, right? And they've turned it into basically a trillion dollars of value. And, um, you know, really clever. It's evolved. I think it's gotten worse personally, that, you know, with a lot of kind of sponsory stuff at the top.
Yeah, rising at the top.
Yeah. But I'm gonna tell you, I think we're at an inflection point where your search is gonna become AI-driven and answer-driven. And so, I'm just gonna, you know, tell you a story from literally this morning, Matt, which is—
Okay.
Again, been married 35 years. That's an approximation. It's a long time. And we discuss yogurt disproportionate to normal people. And so it's like, what do you look for? What your kind, my kind? That has too much sugar in it. I'm looking for more protein, blah, blah, blah. Right.
Yeah.
Just boring old married couple stuff. And there was an article, I think it was in the New York Times this morning about yogurt. It's kind of— don't think of it as a pure health food. Was the gist of it.
Okay.
So, what I did, and just bringing this to life, which is one, I didn't read the whole article. I basically had AI summarize it for me. I sent the original article and the summary to my wife, and then I went into ChatGPT and I basically said, you know, very simple prompt, I want you to tell me what the healthiest Yogurts are. I want it to be fact-based, scientific-based. I want you to you know footnote like what are you using to make this claim, and I want you to be very specific about brand recommendations. And you know push the button, and the answer was fantastic. And I went back and kind of fact-checked it, and it was pretty darn good. Right. And, and by the way, hallucinations feel like they're less. Yeah, right.
Yeah, exactly. It's— I was just about to say, it seems like it's getting much better just in the last several months. Less hallucinations. Yeah. Yeah.
The pace of improvement on these things, like, you know, 3 months ago, I couldn't do that. I wouldn't trust it to do that. But it seems like every 3 to 6 months we're getting kind of another big step function in Now, you know, and we saw the announcement this week of OpenAI directly offering a search product in the works. I, you know, Apple released 18.1, which is starting to kind of put AI directly into kind of the Apple operating system, you know, kind of ecosystem. You know, and then you have Alphabet who, you know, glad I'm not in that chair because I've got a one-hand protection.
What is the crystal ball over the next, you know, 5 or 10 years for maybe the best money-making machine that's ever been invented? Yeah.
So what do you do, right?
Yeah.
You know, you gotta kind of, you can't just say, you know what, forget that old business. We're burning the boats. We're leaning all into like Gemini and we're gonna do it. And You can't do that.
I mean, they— Yeah.
You know, your stock could be down 90%. And, um, so you have to kind of finesse, which they've been doing with AI. They're trying to walk this tightrope of, yes, we know, yes, we're doing it, yes, we're doing it, but we're not— we're still preserving kind of SEO and Google and, you know, AdWords and all that kind of stuff. But I think that's a, you know, they're fighting the past that, you know, we are— I will tell you, I don't use Google to search for stuff anymore. I'm using ChatGPT, Perplexity. I'm using Gemini when I need to find stuff out. And again, I'm an early adopter, but I'm not a technologist. But if I'm doing it to answer my yogurt questions and 9 other things during the I do think search is dead. Search 1.0 is dead. I think we're on search 2.0 and we're in the early phases of it. And given the pace of improvement, I think it's going to go pretty quickly. Like, if I can get the answer and I have some trust in the answer, why am I going to go through the nonsense of going through blue links and sponsors and then trying to like— You know, because if I type that into Google, I'd be getting like 5 sponsored ads from yogurt companies, and then I'm gonna get pseudo ads, and I'm just trying to find out the truth of like, what yogurt should I buy? Give me the answer with some logic behind it.
Yeah.
So that's my number 1. Great.
I like it.
I like it. What do you got?
We got a quick break and then we'll be right back.
Hey everyone, just taking a quick break so I can tell you about the Deep Tech Fund from Alumni Ventures. AV is one of the only VC firms focused on making venture capital accessible to individual investors like you. In fact, AV is one of the most active and best-performing VCs in the US, and we co-invest alongside renowned lead investors. With our Deep Tech Fund, You'll have the opportunity to invest in innovative solutions to major technical and scientific challenges, which can have a hugely positive effect on society. Companies that have the potential to redefine industries and create a more sustainable future and deliver significant financial returns. So if you're interested, visit us at av.vc/funds/deep-tech. Now back to the show. So I came across an article published in this journal called Science Robotics, and these researchers at Seoul National University wrote about this robotic back support device that they created. So I thought this was pretty cool. So they highlighted that back injuries from heavy or repetitive lifting are a real problem in the workplace. So they went about creating this robotic device that they call The Bilateral Back Extensor Exosuit.
Oh, yeah, clever, catchy.
Yeah, yeah. They're not marketing guys, but they did get that down to BECS. So, we'll just call it BECS. So, this BECS, what it does is provide support to lower back muscles during lifting tasks, reducing the risk of spinal injuries. What's cool is if you actually start to check out the videos, the device really looks pretty lightweight and it consists of these soft flexible components that conform to the user's body. They give you support without restricting your natural movement. And it's combining what they call these soft robotics and wearable sensors in order to actively monitor and then assist the user's movements. So depending on your posture and what you're doing, this exoskeleton provides real-time support Reducing the strain on your back muscles. So pretty cool. And depending on what you're doing, if you lift something really heavy, it can give more support or not. And this being a research study, they conducted trials with individuals performing all of these different tasks and were able to actually measure the exosuit's impact on back muscle activity, spinal load, and showed significant reductions in muscle strain. So it works. So pretty cool.
This thing is pretty cool. This BBEX thing, this exosuit, is really cool. It kind of reminds me of like Iron Man or Marvel or something. But as always, I have the article in front of me and I want to read part of the abstract for all of you science minds, all of you engineer minds out there, um, that really use papers and articles to really get across the information and the studies that you're performing. So Here's the abstract from the article itself that Matt has brought to the table. Matt did a really awesome job of sort of summarizing this abstract, but I'm going to share a few highlights. Lumbar spine injuries resulting from heavy or repetitive lifting remain a prevalent concern in workplaces. Back support devices have been developed to mitigate these injuries by aiding workers during lifting tasks. This paper introduces the bilateral back extensor. Exosuit, or BBEX, a robotic back support device designed to address both functionality and safety concerns. The design of the BBEX draws inspiration from the anatomical characteristics of the human spine and back extensor muscles. Using a multi-degree-of-freedom architecture and serially connected linear actuators, the device's components are strategically arranged to closely mimic the biomechanics of the human spine. spine and back extensor muscles. That's really cool. Comprehensive safety validation was achieved through analysis of muscle fatigue in the upper and lower erector spinae muscles, as well as mechanical loading on spinal joints during both lifting scenarios. By seamlessly integrating functionality inspired by human biomechanics with a focus on safety, this study offers a promising solution to address the persistent challenge of preventing lumbar spine injuries in demanding work environments.
We've been hearing a lot about robotics in the venture capital world. I think my mind and probably a lot of other people's goes to these, you know, large robots in factory settings, or maybe you're thinking about humanoid robots, but this just got me thinking about a whole other world of robotics that's probably coming relatively soon with these more soft components that really can help us improve our performance in different activities, lifting heavy weights being one of them. So pretty cool.
No, that's super cool. Again, it reminds me of little you've seen, We've seen this in kind of science fiction military stuff, right? Which is kind of the AI, the kind of the robotic assisted soldier, right? Kind of thing.
Yes.
So, definitely, I think we can see a spectrum of robot which is very repetitive. I know it's defined as an assembly line, probably fully robotic. And then, there's some things where it's just like we're not quite there yet with technology where these kind of assist things make all Yeah, augmented humans is a much faster one. Augmented humans, you know, off the top of your head, you could obviously see warehousing applications. You could see there's some farming examples for sure. But yeah, makes a whole lot of sense. I think, as you point out, Matt, there's a lot of buzz right now between, and a lot of investing in a lot of really cool startups in kind of AI robotic combination things that, you know, that this is also— it's not only could you have human assistant like physical mechanical, but you can throw sensors on there to identify things that, you know, our biological sensors don't pick up. So, I think the hybrid model is really a super interesting one.
Yeah, agree.
Okay. The third one I've got today is, again, a series of things related to new blood tests. And again, over the last month, we've seen really exciting things. And, the beauty of blood tests is they're relatively routine and accessible. And, a lot of people have blood work done as part of an annual physical. And so, again, seeing some things related to blood tests in Alzheimer's disease, which is obviously in combination with some interesting new potential therapies. So, it's one thing to get the blood test and know you're at elevated risk and there's nothing you can do about it except get depressed.
Yes.
But, as things are coming online where you can do something about it, these blood tests where early detection really is a delta, hand in glove, I think that that's really exciting that we're finally starting to see progress made on one of the most terrible diseases that our society has to deal with. And we also had one on, you know, Shield, which is coming out for kind of colorectal cancer screening. So again, you know, there's just the more tools we have with, you know, Colonguard, with— obviously it's really a great idea to still go in for your routine colonoscopy. But it's inconvenient and it's an ordeal. And so, if we can do more of this stuff through blood tests as another kind of tool in the quiver, we're just seeing again a really good pipeline of other blood tests that are just like, hey, part of your annual thing, you get screened, you get an early warning symptom.
Yeah. Yeah, I love the idea of, you know, no additional friction for the patient. They're going in, they're getting the bloodwork anyway. And also this, this bigger trend of more preventative medicine. If things are early, maybe, you know, you're at higher risk, so do, you know, this activity or take this drug before you actually experience the symptoms. So yeah, I think it's a great trend.
One more sponsor spotlight, and then we'll get right back into it. Don't go anywhere.
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As of August 2nd, 2024, 4 days previous to me editing this episode and recording this episode, NPR published a short 3 to 4 minute podcast segment on this topic that Mike is talking about. So the article title is New Blood Tests Can Help Diagnose Alzheimer's. Are Doctors Ready for What's Next? And a reporter, John Hamilton, from NPR takes us through some of the research he found. And I just think it's a really good little snippet from their normal news show, and I wanted to share it and bring it along. So join John Hamilton and a few other specialists that he talks with as he talks about, you know, this great breakthrough that Mike has also brought to the table. A new generation of blood tests promises to change the way doctors diagnose and treat Alzheimer's disease. But there is a snag. Tests have arrived so quickly that there's little guidance on who should get them or how to The blood tests show whether a person with memory and thinking problems also has Alzheimer's.
Dr. Suzanne Schindler of Washington University in St. Louis says just a few months ago, many of these tests were still unreliable.
Blood tests have developed incredibly fast for Alzheimer's disease, and I think people aren't used to the speed at which things are changing. That rate of change.
The tests indicate sticky amyloid plaques and tangled fibers called tau in the brain, the hallmarks of Alzheimer's. Until now, finding these has meant getting an uncomfortable spinal tap or a costly PET scan. But Schindler says that's changing thanks to blood tests that look for an abnormal protein called p-Tau 217.
When you're just looking at cognitively impaired individuals like you might be seeing in a clinic, these p-Tau 217 tests perform very well.
They're right about 90% of the time. Several P-tau 217 tests are commercially available, though none is approved by the Food and Drug Administration. And Schindler says the tests are being ordered by more and more doctors, and not just specialists.
Physicians really need to educate themselves about these tests because this is coming, and this is coming really soon.
One major reason is the approval of 2 drugs that can slow down Alzheimer's. These drugs are available only to people with confirmed amyloid plaques in the brain. Dr. Eliezer Maslia of the National Institute on Aging says the rise of blood testing reflects a larger shift in the Alzheimer's field.
The trend now is to go toward a biological diagnosis of Alzheimer's disease, that is, a diagnosis based on biomarkers rather than just on clinical symptoms.
Biomarkers like P-tau 217, And Maslia says new markers are being discovered all the time.
All this really points to this idea of, okay, now we're going to use a blood test to diagnose Alzheimer's disease, and I think we are very close to that.
Yet many primary care doctors don't yet know how and when to use this new tool, says Dr. Heather Whitson of Duke University.
The field is moving at a pace that I never imagined 10 years ago.
Whitson says physicians should reserve the tests for patients with clear signs of impairment. For example, someone who asks the same question repeatedly during a visit and often forgets to take medications at home. But she says the tests aren't for people who are just anxious about their brain health.
So they'd sometimes struggle to remember a name or a place, but maybe they have a family history of Alzheimer's disease, so every time they forget a name, they're worried that this is it.
These patients aren't eligible for drug treatment, and Whitson says a positive test might cause needless anxiety.
A percentage of the population has amyloid in their brain, and they will live out a normal lifespan and never have symptoms. We know this.
Experts at the Alzheimer's conference say that within a few years, it's likely that primary care doctors will be offering blood tests to many of their older patients with memory problems, and they'll know what to do when a test is, say, borderline rather than positive or negative. But Dr. Howard Phyllis of the Alzheimer's Drug Discovery Foundation says getting a diagnosis is just the first step. What does it mean for the family? What does it mean for the spouse?
This is a huge effect.
And the primary care doctor can make the diagnosis. The question is, will they spend the hour that's needed to do the education and counseling? And will payers like Medicare cover those services? Jon Hamilton, NPR News.
Yeah. And again, there's other things I could have rattled off that are, again, kind of early screen. There's kind of a new multi-cancer screen coming out.
Right.
And so, yeah, all these trends I think are really good, which again empower individuals to get in early, manage your health versus waiting until reactive. The incentive system, unfortunately, with our healthcare system is really designed about waiting till you have a big problem and then trying to fix it.
Yeah.
But, to the extent that we can all take control of our own healthcare more and be healthy and be preventative and get these low-friction tests done. I know there's a lot of talk also in the tech community about the calcium test and really encouraging people to kind of find a way to get that done, which is not—
Low-cost test. And, if you find something, just huge upside.
Huge upside to that one. So again, encourage people to check that out as well, which is just a great way to just hopefully know that you're not accumulating calcium in your arteries. Again, we have a whole kind of lipid infrastructure that is really good to go on, but it's like there's just a number of people that are asymptomatic and stuff is going on. Again, we had a board member, really healthy young person, relatively young person, and just kind of out of the blue, had an episode. And, you know, uh, to the extent that these kind of things that can catch these before you have to go into kind of the remedial part of the healthcare system, um, let's all do that. So remind each other, but these blood tests are good news. So again, exciting stuff. Um, again, appreciate you doing your tour of duty here, Matt, on 3 Breakthroughs. Oh my gosh, I appreciate it. We'll give you a break.
Break. Break.
We got another one of— yeah, passing the baton to Mike Perry, who will be, you know, taking over for the next month or two on this. And then, um, good. Keep doing your thing.
Yeah, thanks, Mike. Appreciate it. This is fun.
Excellent. All right, have a good one. Enjoy France.
Yeah, bye.
Thanks again for tuning in to The Tech Optimist. If you enjoyed this episode, we'd really appreciate it if you'd give us a rating on whichever podcast app you're using And remember to subscribe to keep up with each episode. The Tech Optimist welcomes any questions, comments, or segment suggestions. So please email us at info@techoptimist.vc with any of those, and be sure to visit our website at av.vc. As always, keep building.
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