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Tim FerrissTim Ferriss

The Path to 150M+ Daily Roblox Users, Ketogenic Therapy for Brain Health, and More — CEO of Roblox

David Baszucki is the founder and CEO of Roblox. TIME named Roblox one of the “100 Most Influential Companies,” and it has been recognized by Fast Company for innovation on their “Most Innovative Companies” and “Most Innovative Companies in Gaming” lists. This episode is brought to you by: Qlosi prescription eye drop used to treat age-related blurry near vision (presbyopia) in adults: https://Qlosi.com/Tim AG1 all-in-one nutritional supplement: https://DrinkAG1.com/Tim Wealthfront high-yield cash account: https://Wealthfront.com/Tim New clients get 3.75% base APY from program banks + additional 0.65% boost for 3 months on your uninvested cash (max $150k balance. Terms apply. The Cash Account offered by Wealthfront Brokerage LLC (“WFB”) member FINRA/SIPC, not a bank. The base APY as of 9/26/25 is representative, can change, and requires no minimum. Tim Ferriss, a non-client, receives compensation from WFB for advertising and holds a non-controlling equity interest in the corporate parent of WFB. Experiences will vary. Outcomes not guaranteed. Instant withdrawals may be limited by your receiving firm and other factors. Investment advisory services provided by Wealthfront Advisers LLC, an SEC-registered investment adviser. Securities investments: not bank deposits, bank-guaranteed or FDIC-insured, and may lose value. [00:00] Preview. [00:36] Custom kettlebells. [01:51] How we connected through Dominic D’Agostino and metabolic health research. [03:20] Matthew Baszucki’s eight-year journey with bipolar disorder before keto breakthrough. [07:18] Rescuing Matthew from the streets. [15:19] Matthew’s disappearance from his mother’s perspective. [16:43] Understanding how the ketogenic diet helps people with bipolar disorder. [21:38] Meeting the challenges of ketogenic diet compliance. [27:42] Measuring ketone levels. [29:56] The clandestine Canadian CKM smuggling ring. [30:46] The calm optimism, mental clarity, and reduced sleep requirements of ketosis. [33:02] Breath hold experiments. [35:36] Optimizing my sleep and minimizing my OCD on ketosis. [38:16] How exogenous ketones improve verbal acuity of relatives with Alzheimer’s [39:53] Lyme disease and ketosis. [42:45] Talk therapy vs. mechanical therapy: Fix the machinery first. [44:05] Dangers of talk therapy without physiological foundation: Learned helplessness. [45:09] Atmospheric Calm playlist for focus and productivity. [46:20] How Roblox fits in with human connection evolution with120 million daily users. [50:30] Emergent games. [51:45] Roblox’s safety infrastructure: Built for all ages from day one. [52:40] Virtual meetings replacing video calls, concerts, and political rallies. [54:06] The inevitability of innovation. [55:30] From early revenue challenges to a creator community earning over $1 billion a year. [01:00:19] Economic inspiration from Adam Smith. [01:01:22] Building the Robux system with a 20-person team in three months. [01:07:53] How does Roblox guard against IP theft among its digital creators? [01:12:14] Best company decisions thus far. [01:17:22] Missteps and mistakes. [01:18:54] When intuitive tech predictions pay off. [01:23:46] David’s favorite niche Roblox games. [01:26:43] Roblox kid safety: Filtered communication, parental controls, future AI age estimation, and clustering. [01:30:10] Roblox AI infrastructure: Hundreds of models for safety, translation, 3D creation, and procedurally generated dreaming. [01:31:46] Predictions: Sci-fi becoming reality, holodeck timeline, AI movies in 3-5 years, photorealistic virtual concerts. [01:35:45] Product development and challenges of being a public company CEO. [01:40:00] David’s self-care routine. [01:43:55] Roblox wellness: CGMs for all employees, snack labeling system, employee transformations. [01:45:37] Exploratory reading. [01:48:07] “Feed Your Head”: David’s Jefferson Airplane-inspired billboard. [01:48:48] Whole cream vs. half-and-half for coffee and other parting thoughts. Tim Ferriss is one of Fast Company’s “Most Innovative Business People” and an early-stage tech investor/advisor in Uber, Facebook, Twitter, Shopify, Duolingo, Alibaba, and 50+ other companies. He is also the author of five #1 New York Times and Wall Street Journal bestsellers: The 4-Hour Workweek, The 4-Hour Body, The 4-Hour Chef, Tools of Titans and Tribe of Mentors. The Observer and other media have named him “the Oprah of audio” due to the influence of his podcast, The Tim Ferriss Show, which has exceeded 900 million downloads and been selected for “Best of Apple Podcasts” three years running. Sign up for "5-Bullet Friday" (Tim's free weekly email newsletter): https://go.tim.blog/5-bullet-friday-yt/ Follow the Tim Ferriss Podcast: https://tim.blog/podcast/ Visit the Tim Ferriss Blog: https://tim.blog/ Follow Tim Ferriss on Twitter: https://twitter.com/tferriss/ Follow Tim Ferriss on Instagram: https://www.instagram.com/timferriss/ Like Tim Ferriss on Facebook: https://www.facebook.com/TimFerriss/

David BaszuckiguestTim Ferrisshost
Nov 5, 20251h 51mWatch on YouTube ↗

At a glance

WHAT IT’S REALLY ABOUT

Roblox’s creator economy and ketogenic therapy’s role in mental health

  1. David Baszucki recounts his son Matthew’s first manic episode in college and the family’s years-long struggle with bipolar disorder, including hospitalizations and periods when Matthew was missing or living on the street.
  2. He describes ketogenic therapy—implemented with clinical support—as the intervention he believes produced unprecedented improvement within weeks compared to prior medications and treatments.
  3. The conversation explores practical challenges of staying in ketosis, ways of monitoring glucose/ketones, and subjective effects he and Tim Ferriss associate with ketosis (including mood, clarity, and sleep-related observations).
  4. Baszucki explains Roblox as a large-scale, user-generated 3D platform for connection and play, and details how building a Robux-based digital economy aligned revenue with engagement while enabling creators to earn income.
  5. He outlines Roblox’s approach to trust and safety (filtered communication, parental controls, and AI systems) and shares a forward-looking view of AI-assisted creation and more immersive 3D communication experiences.

IDEAS WORTH REMEMBERING

5 ideas

A family crisis around bipolar disorder set the stage for exploring ketogenic therapy.

He described an eight- to nine-year stretch involving manic episodes, multiple hospitalizations, difficulty navigating care, and fear about whether Matthew would return to school or work, before the family later pursued ketogenic therapy.

David Baszucki attributed a rapid, dramatic improvement in his son’s bipolar symptoms to a ketogenic diet.

After working with Dr. Chris Palmer and a dietician, he said Matthew tried a ketogenic diet and that within three to four weeks they saw progress they had never seen with any drug or medication, which he characterized as “mind blown” and “a miracle.”

He framed keto’s mental-health effects through the lens of brain energy stability.

He explained ketosis as shifting from primarily burning glucose to using ketones as an alternate energy pathway, which he associated with more consistent energy and mental clarity; he also speculated that bipolar symptoms could relate to inconsistent brain energy from “glucose spike, glucose crash.”

He emphasized that, for his son, ketosis adherence appeared tightly linked to symptom stability.

He shared a Mexico trip example where unexpected carbs from avocados likely nudged Matthew out of a strict “ketone zone,” coinciding with early manic signs like reduced sleep and agitation, and said tightening the diet (fish plus more butter/olive oil) brought him “right back in.”

Measurement and felt-sense tracking were presented as practical tools for sustaining ketosis.

He discussed finger-prick ketone testing, CGMs for glucose trends, and said continuous ketone monitors (CKMs) are available in Canada but not yet in the U.S.; he also described personally noticing a “calm optimism” when in ketosis.

WORDS WORTH SAVING

5 quotes

We worked with Dr. Palmer and others, and he tried a ketogenic diet, and literally within three weeks or four weeks, we saw progress that we had never seen with any drug or medication.

— David Baszucki

Here we were, family with all of the resources in the world. And then by some miracle, he texted me from a Starbucks, once again, full-blown manic episode.

— David Baszucki

For me, the feeling is one of not irrational optimism, but a little bit of a calm optimism that we can do this and- and things are gonna be okay.

— David Baszucki

It's kind of Interesting that we, we first go to talk therapy rather than what I would call mechanical therapy.

— David Baszucki

We wanted to get to a point where revenue equals K times hours.

— David Baszucki

Matthew Baszucki’s bipolar disorder journeyKetogenic diet basics (glucose vs. ketones)Ketosis compliance challenges and restaurant strategiesKetone and glucose monitoring (finger-prick, CGM, CKM)Mood, sleep, and cognition experiences linked to ketosisRoblox as a user-generated 3D connection platformRobux economy and creator monetization design choices

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