Iron Foundry by Terra API features conversations with founders, investors and athletes building the future of health, fitness and technology. Hosted by Kyriakos Eleftheriou, founder and CEO of Terra API. Guests include Vinod Khosla, Bryan Johnson, Lance Armstrong and former Y Combinator president Geoff Ralston. Explore AI, healthcare, human performance and company building. Full episodes, transcripts and key takeaways: https://tryterra.co/podcast
Vinod Khosla’s conclusion: “It’s over for human doctors. AI’s just going to be better.”
Vinod Khosla (https://twitter.com/vkhosla) joins Kyriakos Eleftheriou (https://twitter.com/kyriakosel) in front of hundreds of YC AI Startup School founders to explain what the future of healthcare actually looks like.
0:00 Introduction
1:51 When “Do What Users Want” Is Wrong
2:26 Nobody Asked for AI or Fusion
3:51 You Don’t Need a Noble Reason to Start
4:58 Workers, Not Tools for Workers
5:43 Humans Get in the Way of AI
7:52 The Most Important Founder Decision: Who to Ignore
8:15 70% of Investors Add Negative Value
9:40 Most VCs Haven’t Earned the Right to Advise
10:01 Great Founder References Can Be a Bad Sign
10:45 Four Years Destroyed by Polite Investors
12:07 Sam Altman’s Hardest Problem
13:27 Disagreement Is Always Good
15:39 Follow the Talent, Not Today’s Failures
16:55 When Every Telecom Company Bet Against TCP/IP
19:33 “My Willingness to Fail Allows Me to Succeed”
20:57 Judge the Learning Curve, Not the Founder Today
21:13 European Investors Turn Great Ideas Into Decent Ones
22:57 No Doctor Can Keep Up With Medicine
23:41 Drug Interactions Kill More Than Breast Cancer
23:54 Why Vinod Diagnoses Himself With ChatGPT
25:12 Taking a Drug Approved Only for Women
26:44 Three Surgeons. Three Answers. One MRI.
28:28 It’s Over for Human Doctors
30:27 Doctors 73%. AI 88%. Doctors + AI 76%.
31:52 AI Mental Health Diagnosis: 93%
32:52 AI Rated as a Top-10% Therapist
33:19 A Frontier Model Is Not a Medical System
34:32 Human Error Is More Acceptable Than AI Error
36:08 $1T of Healthcare Expertise Should Be Free
38:20 Doctors Will Not Use AI If It Costs Them Fees
38:54 Why the AMA Opposes AI Doctors
39:13 Billing Decides Which Medical Technology Wins
40:34 Administrative AI Is the Smaller Opportunity
41:39 Going Founder Mode on Cancer
42:25 N=1 Medicine Can Route Around Drug Trials
43:06 Founders Go Around Obstacles. Big Companies Don’t.
44:07 Removing Human Drivers Could Save 30,000 Lives
45:38 Radiologists Without AI Are Killing People
46:11 MRI Scanners Should Output Diagnoses, Not Images
48:02 Epic Still Runs on a 1960s Language
49:34 How AI Agents Can Route Around Epic
51:02 Impact Over IRR. OpenAI Made No Sense.
51:48 Fusion Will Not Happen Until Someone Builds It
52:34 Entrepreneurs Make Forecasts Irrelevant
54:17 Light-Rail Capacity Inside a Bicycle Lane
6 Aug 2026
Hims & Hers CTO: Mo Elshenawy
Mo Elshenawy (https://www.linkedin.com/in/mohamedelshenawy) helped put driverless cars on San Francisco streets as President and CTO of Cruise.
Now CTO of Hims & Hers, he joins Kyriakos (https://x.com/kyriakosel) to explain why rebuilding healthcare is harder.
They discuss closed-loop healthcare, clinical guidelines as code, when AI should remain silent, and whether AI will replace doctors.
Mo’s argument: models commoditize. Data and workflow compound.
At 25:13, Mo introduces Hims & Hers’ new AI weight loss companion.
CHAPTERS
(00:00) The Chessboard That Started It All
(02:22) AI Changed the Cost of Building
(04:17) Healthcare Is Harder Than Self-Driving
(06:13) Twice the Cost. 3.7 Fewer Years.
(09:17) Conviction Before Driverless Worked
(13:47) The Lunch That Changed His Career
(15:25) Healthcare Is Actually Sick Care
(18:03) Write Your Own Onboarding Plan
(19:43) AI Without a Platform Is Demoware
(23:06) Why OpenAI Can’t Close the Loop
(25:13) Hims’ AI Weight Loss Announcement
(28:42) Silence Is a Feature
(31:53) Clinical Guidelines as Code
(33:32) Most AI Benchmarks Are Theater
(36:12) Models Commoditize. Workflow Compounds.
(38:46) AI Will Not Replace Doctors
(44:37) AI Makes Bad Engineers Worse
(48:15) Healthcare Is Still Blockbuster
(52:00) Is Hims Getting Into Peptides?
(54:06) Concierge Care in Everyone’s Pocket
(58:46) AI Destroys the Excuse Not to Build
More episodes (https://tryterra.co/podcast)
3 Jul 2026
George Hadjivarnava: Founding Foody, and building AI at Terra
George Hadjivarnava (linkedin.com/in/ghvarnava/?skipRedirect=true) co-founded Foody as CTO with no VC money, made it profitable in under 2 years, and sold it to Delivery Hero in the biggest tech acquisition in Cyprus.
Scaling through COVID from restaurant menus to full supermarkets, total downtime: 45 minutes.
Now he leads engineering strategy at Terra and he believes the next infrastructure layer won't be built for developers at all.
Why in two years 90% of Terra's customers will be agents instead of developers
Why MCPs didn't invent anything new, and the missing layer that transfers intent instead of commands
Why nothing performs well past 100k tokens despite 1M context windows
The decision log: AI's most underrated asset inside a company
Bootstrapping Foody from phone orders and cash payments to a national exit
Compressing hiring from 3 weeks to 1 day with 30,000 applications a year
The 24/7 AI health system: even a billionaire's team of doctors goes to sleep
(0:00) Intro
(1:30) Startup ecosystem in Cyprus: more incubators than startups
(7:20) Why ecosystems compound
(23:00) Flunking Imperial and building websites to pay rent
(29:00) Foody's first version: phone orders, cash only
(39:35) The Delivery Hero acquisition and COVID scaling
(43:05) 45 minutes of total downtime
(44:45) You can one-shot an app. You can't one-shot 100M users
(50:25) Joining Terra
(56:40) The missing agent layer: intent, not commands
(1:02:50) The 24/7 AI health system
(1:09:35) The 90% agents prediction
(1:11:05) Hiring compressed from 3 weeks to 1 day
(1:15:35) The decision log: building a company brain
(1:19:10) Why 1M context windows are marketing
(1:26:35) Three changes to become a real technology hub
Reach and audience
Public platform figures. Ratings count people who left a rating, not total listeners.
Apple Podcasts (US)
5.0 / 5
1 ratings
Spotify
4.8 / 5
23 ratings
Podcast Authority Score: 57 / 100
A composite of feed quality, social presence, YouTube performance and engagement. Read the methodology.
Quality
83
Social presence
0
YouTube
0
Engagement
77
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