Hi All,
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Please find your weekly roundup email below. The 5-Bullet Friday newsletter is coming on Friday, as always.
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​​✍️ New blog post:​
​Has AI Already Killed How-To Nonfiction? Sales Trends, My Personal Data, and What It Might Mean for the Future​
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🎧 New podcast episode:​
​Max Levchin, PayPal and Affirm — The Path from The Soviet Union to Building Multi-Billion Dollar Companies (Plus: Real-World Socialism vs. Capitalism)​
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This episode is brought to you by:
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• ProLon — Science-backed Fasting Mimicking Diet that helps activate cellular renewal through fasting, while still eating nourishing meals​
​• Monarch — Track, budget, plan, and do more with your money
• Shopify — Global commerce platform, providing tools to start, grow, market, and manage a retail business
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Short descriptions are below.
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Enjoy!

​✍️ New blog post:​
​Has AI Already Killed How-To Nonfiction? Sales Trends, My Personal Data, and What It Might Mean for the Future​

My head has been spinning after getting a spreadsheet roughly a week ago.
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Before we dive into my dirty laundry, let’s state the obvious: millions of people have a vague sense that AI is changing things. And LLMs sure are convenient for getting answers quickly. My team and I use Claude and other tools daily.
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But far fewer people have first-hand experience with the speed and intensity of disruption that’s happening. Not in a year, not in six months, but right now.
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So let me show you, using my own books as the cadaver on the table, what a fatality looks like.

​CLICK HERE TO CONTINUE READING...​

🎧 New podcast episode:​
​Max Levchin, PayPal and Affirm — The Path from The Soviet Union to Building Multi-Billion Dollar Companies (Plus: Real-World Socialism vs. Capitalism)​

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Max Levchin (@mlevchin) is a serial entrepreneur, computer scientist, philanthropist, and active investor in more than 100 startups. He is the founder and CEO of Affirm, the payment network that empowers consumers and helps merchants drive growth. He is also the co-founder and chairman of Glow, a data-driven fertility company. Both companies were created and launched from his San Francisco-based innovation lab, SciFi VC (formerly HVF [Hard, Valuable, Fun]). Max was one of the original co-founders of PayPal, where he served as the chief technology officer until its acquisition by eBay in 2002. In 2002, he was named to MIT Technology Review’s TR100 as one of the top 100 innovators in the world as well as Innovator of the Year.
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Prior to HVF, Max founded, and was CEO of, Slide, a personal media-sharing service, which was acquired by Google in 2010. Max also helped create Yelp, where he served as chairman of its board of directors from its founding in 2005 until 2015. He served on the board for Yahoo! from 2012 to 2015.
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Max was born in Kyiv, Ukraine, before moving to the United States and settling in Chicago in 1991. He holds a B.S. in computer science from the University of Illinois at Urbana-Champaign, where he founded and led four other technology startups.
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Please enjoy!
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Listen to this episode on Apple Podcasts, Spotify, Overcast, Podcast Addict, Pocket Casts, Castbox, YouTube Music, Amazon Music, Audible, or on your favorite podcast platform.

This episode is brought to you buy ProLon! One name that has come up on this podcast more than once is Dr. Valter Longo, a USC professor with decades of peer-reviewed research on fasting, nutrition, and aging. I regularly fast and have done a lot of experiments with fasting over more than a decade, and it has been one of the most incredible unlocks that I have found for both near- and long-term physical and mental health.

But fasting can be really hard, and that is why Dr. Longo, best known for the Fast Mimicking Diet (FMD), developed ProLon. For 5 days, you’re able to get the benefits of fasting—including autophagy, your body’s cellular, self cleanup process—all while eating real, structured, plant-based meals. In scientific studies, 5-day cycles of the Fast Mimicking Diet improved markers tied to metabolic health and biological aging and helped people drop fat while holding onto lean muscle. And ProLon makes it easy: it comes in one box, everything is clearly laid out, and there’s no guesswork. For a limited time, Prolon is offering my listeners 15% off site wide, plus a $40 bonus gift when you subscribe to their 5-day program. Just visit ProLonLife.com/Tim.
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This episode is also brought to you by Monarch! Traditional budgeting apps can help, but they don’t compare to the complete financial command center you get with this episode’s sponsor, Monarch. Monarch was named The Wall Street Journal’s Best Budgeting App of 2025, and it’s the top-recommended personal finance app by users and experts, with more than 30,000 5-star reviews. Get control of your overall finances with Monarch. Use code TIM at Monarch.com/Tim for half off your first year.

This episode is also brought to you by Shopify! Shopify is one of my favorite platforms and one of my favorite companies. Shopify is designed for anyone to sell anywhere, giving entrepreneurs the resources once reserved for big business. In no time flat, you can have a great-looking online store that brings your ideas to life, and you can have the tools to manage your day-to-day and drive sales. Go to Shopify.com/Tim to sign up for a one-dollar-per-month trial period. It’s a great deal for a great service, so I encourage you to check it out. Take your business to the next level today by visiting Shopify.com/Tim.