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/