Russ Altman: Today on The Future of Everything, the future of detecting DNA in your blood. Now DNA is the building block of life. It is a relatively simple long molecule or polymer made out of four components or DNA bases which have one letter abbreviations, the famous ATCG, which stand for their chemical names. It’s like a string of beans, beads, beads, but it is long. A human genome is made of about three billion DNA bases, divided into 23 chromosomes. So if you add up the beads in each chromo...
Nov 22, 2019•28 min•Ep 100•Transcript available on Metacast They make a remarkable array of chemicals to survive the world around them. One engineer is using that knowledge to help people live better. When things aren’t going well for humans and other ambulatory creatures, they simply move on to a new location, a new life. For plants, it’s different, says chemical engineer Elizabeth Sattely, who studies the evolutionary adaptations plants make to survive. Unable to migrate, plants must make do with the hand that’s dealt them. And sometimes that hand is n...
Nov 15, 2019•28 min•Ep 96•Transcript available on Metacast In breast cancer pathology, a 2 percent chance of malignancy is the accepted threshold at which a radiologist refers the patient for further study. In reality, that threshold varies among doctors; some are more conservative, others less so. The result is either more false positives, in which a healthy patient worries unnecessarily they have cancer, or more-worrisome false negatives, in which a patient is told they are fine when they are not. One researcher working to reduce that gap is Stanford’...
Oct 25, 2019•28 min•Ep 93•Transcript available on Metacast In cancer detection, could a blood test replace a biopsy? Once, when a cancer was suspected, the next move often involved a biopsy – literally cutting out human tissue to ascertain malignancy. But that highly invasive model is now being overshadowed by the promise of “liquid biopsies.” In these non-invasive approaches, blood, spinal fluid and other bodily liquids are drawn and tested for the presence of cancer cells, bits of DNA or other molecules that are the unmistakable markers of serious dis...
Oct 18, 2019•28 min•Ep 91•Transcript available on Metacast Women face many roadblocks to careers in data science and other STEM disciplines. One Stanford professor is out to change perceptions and realities for women in these fields. It was in 2015 when Margot Gerritsen was asked to speak at a data conference with not a single other woman on the program that she knew that something had to be done to get women into the field. As then-director of the Institute for Computational and Mathematical Engineering (ICME), Gerritsen knew more than a thing or two a...
Oct 11, 2019•28 min•Ep 85•Transcript available on Metacast How do new technologies and techniques for altering DNA get used? And who gets to use them? In recent years, the development of inexpensive genetic sequencing and easy gene editing technologies has given rise to a community of non-academic, amateur researchers who like to refer to themselves, only half-jokingly, as “biohackers.” But, says Mildred Cho, a research professor who has published frequently about bioethics, such communities are not bound by traditional “first-do-no-harm” ethical norms ...
Oct 04, 2019•28 min•Ep 92•Transcript available on Metacast An expert on air quality talks about the hidden dangers inside our homes and offers some helpful tips on what you can do to reduce your exposure. We all know about the decades-long battle to improve air quality outdoors, but Stanford environmental engineer Lynn Hildemann says that while much progress has been made in that regard, it may have caused us to look past the pollutants in our own homes. Hildemann, who studies air pollution and its effects inside and outside the home, says that chemical...
Sep 27, 2019•28 min•Ep 90•Transcript available on Metacast A mechanical engineer explains how more and better data is helping to create new prosthetics unlike any before. For years prosthetic limbs were merely functional devices, but recent advances in robotics and neuroscience are transforming the very meaning of the word "prosthetic." Steve Collins is a mechanical engineer who is helping to lead that transformation to the benefit of people who've had an amputation, stroke or battlefield injury. The field has come a long way since the days of strap-on ...
Sep 20, 2019•28 min•Transcript available on Metacast Russ Altman: Today, on The Future of Everything, the future of the microbiome. Now, the microbiome has gotten a lot of attention in the last few years. Now, what is a microbiome? I guess we will learn more, but for the purposes of this discussion, it’s the full set of microbial organisms, chiefly bacteria, but maybe others, that live in different niches within our body. Our mouth, nasal cavity, skin folds, everywhere that has contact with the outside world. The gut microbiome is one of those mic...
Sep 13, 2019•28 min•Ep 88•Transcript available on Metacast Once the core American curriculum meant reading, writing and arithmetic, but Stanford professor Mehran Sahami says we might soon have to add a fourth skill to that list, “coding.” Sahami thinks deeply about such matters. He’s the leading force behind recent changes in Stanford’s computer science curriculum. He notes that it may not be surprising that more students are choosing to major in computer science than ever before, but what might turn heads is the changing face and intellectual landscape...
Aug 23, 2019•28 min•Ep 87•Transcript available on Metacast Russ Altman: Today, on The Future of Everything the future of Silicon Valley. Periodically, in human history every now and then there is an unusual mix of opportunity, capital, talent, technology in a geographical region that concentrates this and creates perhaps an unusual period of creativity, invention and sometimes great impact on a global scale. Far beyond, what you might expect from that local geography. I like to think about the Italian Art Renaissance in the 15th and 16th century, focuse...
Aug 16, 2019•28 min•Ep 83•Transcript available on Metacast Computers are everywhere and humans are engaging with them in nearly everything they do. Knowing this, the question becomes: How do we design a world around us so that technology makes life better, not worse? James Landay, an expert in human-computer interaction, says the key to thoughtfully integrating humans with digital technology is to put people first. This perspective draws on a philosophy known as human-centered or user-centered design. Within this approach, the first priority is to under...
Jul 19, 2019•28 min•Ep 82•Transcript available on Metacast Biomedical data scientist Sylvia Plevritis is an expert in computational modeling of cancer risk and treatment options hidden in the remarkable quantity of data available today. Rarely is a tumor made up of a single mutation, she says, but more commonly of a mix of different mutations. Such heterogenous tumors may require complex combinations of drugs to produce the most effective treatments. That’s where computers can help. Using mathematical simulations, Plevritis is helping patients and their...
Jul 19, 2019•28 min•Ep 86•Transcript available on Metacast Political scientist Jeremy Weinstein has worked at both the White House and the United Nations. In both jobs, he encountered the ethical and policy concerns that new technologies can present to policymakers. As one example, he points to the fierce debate between Apple and national security experts over end-to-end encryption and the challenges investigators faced in accessing data on the iPhones of the perpetrators of a terrorist attack in San Bernardino in 2015. He wants universities, like Stanf...
Jul 12, 2019•28 min•Ep 78•Transcript available on Metacast Once avoidance was the only answer, but a leading allergist says that advances in desensitizing allergies are challenging common convention. Food allergy expert Kari Nadeau, MD, PhD, says that as many as one in ten adults in the U.S. has a food allergy, many without knowing it. With consequences that range from mild to serious (including lethal anaphylaxis), it is imperative that medical scientists become better adept at spotting food allergies and ultimately at helping patients cope with allerg...
Jun 28, 2019•29 min•Transcript available on Metacast Can we reap the benefits of artificial intelligence while also protecting our personal information? From scheduling appointments to setting the thermostat to ordering pizza, virtual assistants are growing more commonplace by the day. Stanford professor Monica Lam says they will only become more entrenched as their capabilities grow and their voice-recognition skills become more accurate. Such developments are welcomed by many who rely upon Alexa and Siri and other virtual assistants. But it is a...
Jun 04, 2019•28 min•Ep 80•Transcript available on Metacast In-depth statistical analyses show time and again that subtle, unconscious bias is pervasive in the American justice system. The bigger question, however, is what to do about it? Sharad Goel is an expert in computational social science – that is, using computers and data to examine and address policy issues. He says unconscious bias is subtle but entrenched in American life, and nowhere are the consequences more concerning than in criminal justice. Goel has analyzed hundreds of millions of crime...
May 31, 2019•28 min•Ep 77•Transcript available on Metacast When Stanford’s Paul Yock was a young interventional cardiologist, he was frustrated by the complex, two-person process required to deliver life-saving stents. So, he invented a better way. His Rapid Exchange stenting and balloon angioplasty system, one of several inventions Yock is known for internationally, can be managed by just a single operator, making procedures like stent placement faster and safer. Yock is a man of many talents. He is a doctor, a professor of bioengineering and of mechan...
May 06, 2019•28 min•Ep 81•Transcript available on Metacast Margaret Brandeau may carry a business card that reads Professor of Management Science and Engineering, but her expertise is in using complex systems models to solve challenges in public health policy. For instance, she recently created a sophisticated computer model of the national opioid crisis, which led her to the stark –and surprising – conclusion that it may take a short-term rise in deaths to ultimately reduce them. She didn’t come to that conclusion lightly, but made no less than 10 mode...
May 06, 2019•28 min•Ep 79•Transcript available on Metacast By last count, there are 5,000 genetic diseases in the human body. A few are merely annoying, but far more are devastating and without cure. In the last decade, much popular attention has been focused on the potential for stem cells and gene therapies to cure these once-intractable diseases. While the promise is clear, Tony Oro cautions patience. Oro is a dermatologist and associate director of the Center for Definitive and Curative Medicine at Stanford. He is a leading expert in the scientific ...
Apr 22, 2019•29 min•Ep 75•Transcript available on Metacast Brain cancers are known to be elusive and clever killers, but Michelle Monje, associate professor of neurology and neurological sciences, is helping to find new treatments through a better understanding of how healthy brain cells develop and how cancers often hijack those very same processes in order to grow themselves. Monje says that the last decade has seen tremendous progress in our understanding of how cancers thrive and in the development of new drugs and therapies to kill the killers. Unf...
Apr 22, 2019•28 min•Ep 74•Transcript available on Metacast The current process for diagnosing autism requires no less than 10 hours of intensive doctor-to-patient observation. It is expensive and time-consuming, says autism expert Dennis Wall, an associate professor of pediatrics and of biomedical data science at Stanford. Wall is developing new ways to tackle the problem. He says advances in machine learning, a branch of artificial intelligence focused on training computers to perform important medical tasks, stand to shake up the field. He’s developin...
Apr 03, 2019•28 min•Ep 76•Transcript available on Metacast Mechanical engineer Xiaolin Zheng really likes to burn things, but she is more like a modern-day Prometheus than a pyromaniac. She uses combustion to create minute nanoparticles of various metal oxides that have many practical and valuable uses in today’s world. For instance, she has created nanoparticles that can turn water into hydrogen peroxide using only energy from the sun. Hydrogen peroxide is a powerful disinfectant that kills microbes and removes other pollutants from water. Zheng imagin...
Mar 12, 2019•28 min•Ep 73•Transcript available on Metacast In safety engineering, ergonomic differences between men and women are important. Conventional seat belts do not fit pregnant women properly and motor vehicle crashes are the leading cause of fetal death related to maternal trauma. Analyses of sex differences have led to the development of pregnant crash test dummies that enhance safety in automobile testing and design. In medicine, osteoporosis has been conceptualized primarily as a women's disease, yet after a certain age men account for nearl...
Mar 06, 2019•28 min•Ep 72•Transcript available on Metacast Stanford radiation oncologist, Billy Loo, says that a new generation of radiation therapy technology called PHASER will be so fast that it can even compensate for the patient moving during treatment. High-energy X-rays will be fired so quickly, like a flash photograph, that motion is frozen and radiation can be more precisely focused on tumors. His research team is also finding that such ultra-fast “FLASH” radiation kills cancer cells through new biological mechanisms while causing less damage t...
Mar 05, 2019•28 min•Ep 71•Transcript available on Metacast Carlos Bustamante is an expert in genomics—the study of genetic variation and its effects on the living world. He says genomics holds tremendous promise but, so far, virtually all sequenced DNA comes from European blood lines and this presents a problem. Without greater diversity in the genomic data that is collected, he notes that we cannot fully reap the benefits of this knowledge, particularly in areas such as healthcare. "Genomics is the new oil," Bustamante says, of the opportunit...
Feb 14, 2019•28 min•Ep 68•Transcript available on Metacast Why do well-off public schools often demand that parents supplement school programs with personal contributions? Why do many rare diseases receive the lion’s share of donor attention and money? Is basic science being driven by the whims of big donors? These are questions that keep Stanford political philosopher Rob Reich up at night. Reich says that philanthropy is at an ethical crossroads in which the heart often leads the head in determining which causes get showered with money while other, pe...
Feb 11, 2019•28 min•Ep 70•Transcript available on Metacast Of the many nations that have implemented some measure of digital democracy, none perhaps has had more success than Estonia. Toomas Ilves, a Distinguished Visiting Fellow at the Hoover Institution, would know: He served as president of the Baltic state for two terms. Ilves says that all Estonians have verifiable digital identities and they use them to vote, sign legal documents, order prescription medication, file taxes and more online. Estonian digitization began with schools and banking in the...
Feb 04, 2019•28 min•Ep 69•Transcript available on Metacast In hospitals across the world, the unmet need for end-of-life palliative care threatens to overwhelm the few doctors who are equipped to adequately provide counseling that can help patients die on their own terms. There are just too many patients and too few doctors. Stanford’s Nigam Shah, an expert in medical informatics, says that such scenarios may soon become a thing of the past. Artificial intelligence, founded on tens-of-thousands of data points gathered from millions of patients, is flipp...
Dec 20, 2018•28 min•Ep 63•Transcript available on Metacast The worlds of academic economics and ride sharing are not so far removed – just ask Stanford labor economist Paul Oyer. When Oyer wanted to study the gig economy, he didn’t do it from afar; he became an Uber driver. Oyer says lessons from the gig economy hold deep lessons for the job market for more traditional jobs. Uber’s surge pricing, for instance, is more than a payment structure – it entices Uber drivers to work odd hours or at times of peak demand. He says Uber is constantly reworking its...
Dec 20, 2018•28 min•Ep 62•Transcript available on Metacast 
