Tiago Forte scaled Building a Second Brain as live cohorts, then stopped teaching them himself

The story

This is the cohort-operations story, not the consulting-exit origin. A Disco customer case study dated 5 May 2022, later read from an archived copy of the same URL after the live blog became a hub, asked how Tiago Forte scaled Building a Second Brain as a live program. Disco's own lede still mentions a consulting "rage quit" and a month of savings, then a Skillshare course. Those setup lines are the vendor's narrative. The quotes that follow are about why a marketplace course was not enough, and how a cohort machine is supposed to learn.

Forte's dissatisfaction with Skillshare, as Disco quotes him, was social and informational. "I was so dissatisfied because I never met my students. I didn't know their names. I didn't know anything about them. I didn't know the impact, besides some comments on a discussion forum, I had no feedback." He wanted to know whether the course changed careers, productivity, or effectiveness. Disco states that the Skillshare title became the second most purchased course on the platform after Seth Godin's and was taken by over 10,000 learners. Those rank and enrollment figures are the case study's, not a line in the quoted complaint, and they are not independently audited here.

The live format, in Disco's timeline, started after Forte took a long-form writing course in 2016 and launched a first Building a Second Brain cohort a month later. By the 2022 article he was on the fifteenth cohort, with the course delivered to over 5,000 learners worldwide. Fifteen and 5,000 are Disco's scale snapshot for that interview cycle. They are not a $5 million annual revenue line. Disco also calls Forte Labs an "8-figure learning empire" in one passage and a "7-figure business" running one program twice a year for five years in another. Those two vendor phrases do not match. This file records the contradiction and does not pick a catalog revenue headline to resolve it.

Curriculum, he said, should not be poured in concrete before the room exists. Building a Second Brain, Disco reports him saying, did not have a self-paced curriculum until cohort 10. "Your goal is to discover—one cohort, one group at a time, one zoom call at a time—which 20% of the material provides 80% of the value." Time to value, one of his favorite metrics, was how many seconds pass from the start of attention until tangible unique value. "It should be 30 to 90 seconds." Those seconds are a design target he stated, not a timed user-study. He mocked sales pages that boast 45 videos or 1,500 hours as if pounds of course were the product. People want a shortcut. A hundred hours of watching is the opposite.

Pricing, in the case study, moved with the product. Forte's approach was to raise the price each cohort and justify the increase by adding one or two features, rewarding early buyers and pressuring later ones to come in before the next step. Version notes were shared as a transparent document. "You don't have to reinvent everything. Just imagine yourself delivering the same content, but making it 10% better each time." Ten percent is his improvement slogan, not a measured quality index. Refunds, he argued, were research. "One piece of feedback by someone who's asked for a refund is worth a hundred pieces from anyone else."

Early cohorts were, by his own admission, over-served on purpose. "I would respond to every single post in our discussion forum, just for those first few cohorts. And this was not sustainable. It was not profitable, but for cohorts one through five, I over-delivered and over-committed knowing that would produce those word of mouth kind of generators, who to this day are some of our most important referral sources." Referrals were not even. "It's more like 80% will refer no one. 10% we'll refer one or two people. And the last 10% we'll refer dozens of people." Those percentages are his sketch, not a CRM export in the article.

The team pipeline was the same ladder. Someone might follow for years, sit on email for months, attend webinars, then buy. Community roles ran from student to moderator to alumni mentor to employee. "Pretty much every person on our team that is an employee started and did that whole sequence." Live learning, he said, had flipped prestige: top live courses were "approaching the prestige of Ivy Leagues," and belonging could be as impactful for network and reputation as Harvard or Yale. That is advocacy, not an admissions comparison. Looking five years out, Disco quotes him asking what would be fun, scalable, and at least a 7-figure business that would not be a flash, converging on a subscription learning community.

On 9 January 2023, Forte published his own post, "Why I Will No Longer Teach Building a Second Brain." The scale numbers he put his name on that month are different from Disco's 2022 snapshot and should not be averaged. "After teaching 6k graduates in 16 cohorts over 6 years, it's time to pass the torch to new instructors." Six thousand graduates and sixteen cohorts are his January 2023 counts. He invited a farewell Cohort 16 starting 10 January 2023. He also listed operating changes: everything centralized on Circle; cohort price reduced 50 percent from $1,499 to $749; cohorts increased from two to four a year in two time zones; a Membership with year-round events; always-on purchase for Foundation, a self-paced version, and the Membership.

The 2023 essay's reason is not a growth-chart peak. He wrote that the core material was now available at several prices and paces, including a book heading toward 20-plus languages, which he translated as 60 percent of the world able to read it in their own language. Twenty-plus languages and 60 percent are his accessibility claims, not ISBN audits. He wanted others to teach because there is not one correct Second Brain, and because AI, graph apps, and team knowledge work were the frontier he wanted to think about. The live URL Disco used in 2022 no longer serves that case study as a standalone article. The quotes above come from an archived capture of that URL.

Read as a pair, Disco in 2022 is a vendor story about iterating live until cohort 15 and a five-thousand-learner claim; Forte in 2023 is the instructor stepping off cohort 16 after 6,000 graduates. Neither document, in the passages used here, states a verified $5 million year. What they do state is a method: delay the full self-paced library, raise price with visible version notes, over-deliver until word of mouth exists, hire from the community, then hand the flagship to other teachers when the curriculum is no longer the unexplored edge.