Big Technology Podcast
Big Technology Podcast

Newsletters and The Culture Wars — With Substack CEO Chris Best

Chris Best is the CEO of Substack, an email newsletter platform that lets writers send newsletters and charge subscribers a monthly fee. The platform — which I use for my Big Technology newsletter — is squarely in the middle of the battle over online speech, looked at by some as an alternative that

Featured Speakers

Alex Kantrowitz HostChris Best Guest

Topics Discussed

Episode Summary

Executive Summary: Chris Best argues Substack is not a neutral platform but a principled bet on freedom of the press, direct writer-reader relationships, and escaping social-media-driven attention machines. The conversation covers culture-war scrutiny, moderation, Twitter/Facebook copying Substack, the economics of paid newsletters, discovery, deliverability, and how Substack aims to reshape media incentives without destroying institutions.

Main Topics: Substack's philosophy and role in the culture war (Priority: 5/5): Best rejects the idea that Substack is neutral; he says it has a clear point of view favoring press freedom and reader/writer control. He frames Substack as deliberately entering the culture-war fight over speech and media rather than stumbling into it. Content moderation and free speech (Priority: 5/5): The hosts press Best on his viral tweet 'defund the thought police' and on criticism that Substack lacks a coherent moderation stance. Best argues heavy-handed censorship is a bad fix for the internet's engagement-driven problems and that moderation should be limited and principled. Substack as an alternative to social media incentives (Priority: 5/5): Best says the real target is the attention economy and the 'engagement machine' of Twitter/Facebook, not legacy journalism. Substack's value, in his view, is helping writers do better work and helping readers reclaim attention from outrage-driven feeds. Paid subscriptions and creator economics (Priority: 4/5): A major segment covers whether and when writers should turn on paid subscriptions. Best argues paid models improve the quality of work and often accelerate growth, while the host explains his plan to delay paywalls until his audience and editorial strategy mature. Competition with Twitter, Facebook, and platform cloning (Priority: 4/5): The discussion covers Twitter and Facebook launching newsletter products that imitate Substack. Best says this validates Substack's model but cannot fully replicate the direct relationships and independence Substack offers. Discovery, audience growth, and platform features (Priority: 4/5): Best says Substack must help writers get discovered while avoiding gamified recommendation systems that recreate social-media problems. He emphasizes cross-promotion, revenue-based rankings, and features that help creators grow without compromising trust. Deliverability and spam protection (Priority: 4/5): The conversation ends on the technical challenge of getting newsletters into inboxes. Best says Substack's biggest operational burden is preventing abuse and ensuring wanted newsletters reach readers, because deliverability is central to the product.

Key Arguments: Substack is not neutral; its position is that freedom of the press and direct reader/writer control are important and worth defending. The biggest problem online is the attention economy and engagement algorithms, which incentivize rage, hate, and compulsive scrolling. Heavy-handed censorship is a flawed response because it creates a second problem without solving the first. Substack's target is not legacy journalism itself but the incentive structure of media and the broader attention economy. Paid newsletters create better work because writers can optimize for trust and value rather than clicks and virality. Turning on paid subscriptions does not necessarily slow growth; in many cases it can increase growth if the editorial product is strong. Twitter and Facebook copying Substack is evidence that the model is working, but those platforms cannot fully provide independence because they remain tied to engagement incentives. Substack should help writers discover audiences, but discovery tools must avoid becoming gameable and harmful. Deliverability and anti-spam enforcement are crucial because readers must reliably receive newsletters they actually want.

Data Points: Substack valuation: $650 million - Host cites Substack's growth from a small startup to a highly valued company over two years. Substack Pro take rate: 10% - Best and the host discuss Substack's fee on paid subscriptions. Stripe fee: 3% - Host references the additional payment-processing cost on top of Substack's fee. Twitter creator subscription fee: 5% - Host notes Twitter's competing newsletter/revenue model. Facebook user base: 2.5 to 3 billion users - Host contrasts Facebook's scale with Substack's independent platform. Twitter daily active users: 200 million DAU - Host compares Twitter's reach to Substack's. Viral tweet retweets: over 1,000 retweets - Host describes the spread of Best's 'defund the thought police' tweet. Substack paying subscribers: hundreds of thousands - Best says the business model is clearly working and growing.

Pivotal Quotes: "Defund the thought police." — Chris Best: The tweet that became a flashpoint in the discussion about Substack, free speech, and moderation. "We don't actually see ourselves as a neutral platform. We have a point of view." — Chris Best: Best explains Substack's philosophy of content moderation and press freedom. "The thing that Substack is at the core to me is as a writer, it's a place where I can go independent." — Chris Best: Best describes the creator-side value proposition of direct subscriptions and ownership of audience relationships.

Implications: Substack is becoming a structural alternative to ad-driven media, shaping how writers earn, how readers consume, and how platforms compete. Its success suggests future media will be built around direct trust, not feeds, but it will keep drawing scrutiny over speech, moderation, and power.

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About Big Technology Podcast

The Big Technology Podcast takes you behind the scenes in the tech world featuring interviews with plugged-in insiders and outside agitators. Alex Kantrowitz, a Silicon Valley journalist who's interviewed the world's top tech CEOs — from Mark Zuckerberg to Larry Ellison — is the host.

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