Date: January 07, 2026 Source: Raj Shamani Podcast Topic: Deepinder Goyal on his new health venture, personal insecurities, and leadership philosophy.
Introduction In a candid conversation starting from the 3-hour 54-minute mark, Zomato founder Deepinder Goyal opened up about his latest and most ambitious project yet: a health tracking device named ‘Temple’ and a radical scientific theory he calls “Gravity Aging.” Beyond the tech, Goyal addressed the ethical contradictions of selling food while promoting health, his personal battles with insecurity, and his views on wealth in India.
Below is the complete transcript of the Questions and Answers from this segment.
Part 1: The ‘Temple’ Device & The Gravity Aging Hypothesis
Context: Goyal discusses ‘Temple’, a new wearable device his team has developed. He explains the challenges of miniaturizing the technology to measure blood flow to the brain, a metric he believes is key to longevity.
Q: Is the ‘Temple’ device invasive? Does it involve injections for blood tests? Deepinder Goyal: No, it is completely non-invasive. It is like a sticker or a patch with a double-sided tape applicator. You just stick it on. It has a battery life of 5-7 days. You can swim, sleep, or do anything with it; it won’t come off unless you peel it off. It measures blood flow.
Q: By publicly promoting a device and a new scientific hypothesis without clinical trials, aren’t you risking wrongly influencing people? Deepinder Goyal: I believe my responsibility is to speak the truth as I see it, with caveats. I am treating the public as adults. I wanted to spark a new branch of science. Since we made our research public, over 100 scientists globally have reached out wanting to run experiments on our hypothesis. If I am wrong, I will be the first to admit it publicly. There is no ego involved; it is about asking the questions that matter.
Q: Did you reach out to established bodies like ISRO, NASA, or neuroscientists before going public? Deepinder Goyal: Yes, we reached out to many. Initially, we were dismissed. But after a year and a half of work, when we presented our 80-page body of research to eminent scientists—people from Harvard Medical School and globally renowned experts—the feedback changed. They told us, “You guys know more about the brain than almost anyone else right now,” because we connected dots across physics, biology, and systems design that others hadn’t.
Q: What about critics like ‘The Liver Doc’ who called it pseudoscience and dangerous? Deepinder Goyal: Everyone is entitled to their opinion. I messaged him and invited him to a Zoom call to explain the science, offering to publicly admit if I was wrong. He refused, saying he didn’t have time. He has time to rant on social media but not to engage with the actual evidence. I lost respect for him at that point.
Q: Aren’t you worried about your reputation if this hypothesis turns out to be wrong? Deepinder Goyal: Not at all. What is the public cost of being curious? If I am wrong, I will say so. My identity is not tied to being right; it’s tied to finding the truth.
Q: Critics might say this is just a mask to make money and sell a new device. Is this driven by greed? Deepinder Goyal: If I wanted to just sell the device, I would have paid celebrities to wear it and market it. I wouldn’t have spent years on research. This doesn’t even make business sense in the traditional way. I am doing this for the joy of it. Any money made is just an outcome, which I would likely donate or use to build more companies that create jobs.
Q: What does ‘Temple’ measure that existing devices don’t? Deepinder Goyal: Existing devices like MRIs or NIRS are bulky and situational. ‘Temple’ provides continuous measurement of brain blood flow. We found that everything known to be healthy increases blood flow to the brain, and everything unhealthy decreases it. It acts as a master biomarker for how you are feeling and functioning daily.
Part 2: The Zomato Contradiction & Personal Philosophy
Q: There seems to be a contradiction. On one hand, you run Zomato which delivers junk food at 3 AM. On the other, you are obsessed with health and longevity. Are you contradicting yourself? Deepinder Goyal: I don’t think so. Zomato is a platform, a retail outlet. We offer choices. I order from Zomato 10 times a week and stay healthy. It’s about what you choose. However, we did realize we were making some mistakes. For example, sending push notifications for “Biryani” or “Laddus” was borderline evil. We have stopped doing that. We no longer send targeted notifications for unhealthy food.
Q: Do you keep building new things (like Blinkit, District, Temple) because you can’t sit alone with your thoughts? Deepinder Goyal: I can sit alone. I am just a curious person. I am not doing this out of necessity but for the joy of it. With ‘Temple’, it’s the first time I am building something just for myself, my team, and the user—without the variables of riders or restaurants. I want to build a product with absolute love and perfection.
Q: Are you doing all this for more influence, power, or an ego massage? Deepinder Goyal: I don’t care about power. If I did, I would be doing way more podcasts and public appearances. I prefer to stay in my cocoon and work. I don’t even know any powerful people or politicians; I just do my work.
Q: Have you ever walked into a room and felt inferior? Deepinder Goyal: Almost all the time. Whenever I enter a new field, like aerospace with our new venture or hardware with ‘Temple’, I feel dumb compared to the engineers and scientists. I start conversations with scientists by apologizing for taking their time.
Q: Do you compare yourself to others based on money? Deepinder Goyal: No. I feel I have “enough.” Paradoxically, people with a lot of money often feel they don’t have enough. Money just saves you time; that’s its only real value.
Q: What is your biggest insecurity today? Deepinder Goyal: My biggest fear is losing my intellectual honesty—that I might end up lying to myself. The work I do is high-stakes; if I stop being honest with myself, things can go very wrong. I have a constant nagging self-doubt that keeps me in check.
Q: What is the biggest misunderstanding people have about you? Deepinder Goyal: India has a bad relationship with wealth. People assume if you are wealthy, you must be evil or have stolen the money. That’s not true. We created value and jobs. Wealth is a byproduct of that value. I wish people would stop having a scarcity mindset.
Q: You have a daughter. What do you want her to think of you in 10 years? Deepinder Goyal: I just want to make sure I don’t do anything that she would be ashamed of. Whether she is proud of me is her choice, but I want to avoid doing things that are universally considered shameful.
Q: What is one question you hate being asked? Deepinder Goyal: “How did you start Zomato?” or “Why did you name it Zomato?” I hate these questions. You can Google them. Ask me something new that you can’t find online.
Video Reference Timestamps:
Discussion on ‘Temple’ Device: [03:54:33]
Gravity Aging Hypothesis & Critics: [04:03:21]
Zomato vs. Health Contradiction: [04:13:02]
Personal Insecurities & Wealth: [04:20:33]
Message to Daughter: [04:31:57]
Video Link: Watch the full episode here