Hunter Walk – Building Picks and Shovels - [Invest Like the Best, EP.112]

At a Glance

Hunter Walk (Co-founder of Homebrew) discussed the intersection of creative expression, technology, and human behavior on a podcast. His core thesis is that early-stage investing should focus on "picks and shovels" companies. He shared experiences from Second Life and YouTube: Second Life had a virtual currency system making user behavior quantifiable; YouTube built tools for creators, emphasizing the need for platforms to balance openness with governance. Homebrew's investment areas include the "shadow economy" (e.g., gray market platforms) and fintech, with a focus on the monetization of attention. Key takeaway: VC returns face challenges, and founders most need help with product-market fit and strategic focus. Walk believes good problems should be solvable and scalable, and advises investors to deeply understand the underlying logic of user behavior.

Topic Sections

1. Virtual World Second Life: Quantifiable User Behavior, but Beware the "Desert Effect"

Hunter Walk views Second Life as a "Burning Man"-style virtual world where user behavior is highly quantifiable, but the open environment also limits user scale.

• Historical Context: Second Life was developed by Linden Lab, and Walk was its first non-engineer employee. The company was initially backed by angel investors (including Jeff Bezos and Mitch Kapor), later receiving investment from Benchmark. It has been operating for 18 years and still has approximately 500,000 paying users.
• Mechanism Breakdown: The virtual currency system (Linden Dollar) allows users to trade virtual goods (e.g., clothing, land). The platform charges approximately a 2% transaction fee through the Lindex exchange. Users can subscribe to receive a "stipend" or earn currency through creation.
• Data Chain: Walk noted that user behavior is quantifiable. For example, the size of a user avatar's ears (a 0-100 slider) can reflect group characteristics; user online time once reached 12-18 hours per day, sparking debate on whether this was a "success or a risk."
• Extrapolation: Walk believes that while an open environment (Burning Man) attracts core users, the "desert effect" limits mass participation. He advises investors to focus on how platforms balance openness with governance to expand their user base.

2. YouTube's "Creator Economy": A Closed Loop from Tools to an Economic Platform

Walk emphasizes that YouTube's success lies in building a closed loop of "lowering creation barriers + community distribution + native monetization," with the "Content ID" system being a key innovation.

• Historical Context: YouTube was acquired by Google for $1.5 billion (2006), and Walk joined to lead product. At the time, it faced three major challenges: consumer product stability, copyright issues, and monetization models.
• Mechanism Breakdown: The Content ID system uses audio/video fingerprinting, allowing copyright holders to choose "takedown," "track," or "monetize via ads." This enabled U2 songs to be legally used in wedding videos, with copyright holders earning ad revenue.
• Data Chain: YouTube grew from 100 million daily views to 4 billion daily views; Walk's team launched "Creator Grants" ($2,500-$10,000) to help creators hire editors and increase video frequency.
• Extrapolation: Walk believes platforms should help creators transition from a "side hustle" to a "full-time job," eventually becoming "mini media companies." He warns that if platforms don't help creators make money (e.g., early Snapchat, Instagram), they will leave a competitive gap.

3. Investment Philosophy: Focus on "Problem Size" Rather Than "Market Size," and Look to the "Shadow Economy"

Walk argues that early-stage investing should focus on "problem size" (large, urgent, valuable) rather than traditional TAM; he favors the "shadow economy"—fast-growing areas overlooked by the mainstream.

• Mechanism Breakdown: Walk replaces TAM with "problem size." For example, the TAM for construction software company Building Connected was only $100 million (due to expensive industry software), but the actual problem's value far exceeds this. The company now has 160,000 business users and processes over $100 billion in projects monthly.
• Case Study: The Skimm (newsletter) was initially rejected by VCs ("email is dead"), but Walk found its stickiness extremely high through user retention analysis. It now has 7 million readers, 80% of whom are women, with revenue from sponsorships, subscriptions, and e-commerce.
• Extrapolation: Walk believes the leading indicator for the "shadow economy" is attention flow (e.g., esports, Twitch). He advises investors to focus on the "attention shadow economy" because "dollars follow eyeballs."

4. Fintech: Data-Driven "Better Experiences," Not Disruption

Walk believes the opportunity in fintech lies in using data to provide superior experiences, rather than simply disrupting traditional institutions; he prefers teams with strong "founder-market fit."

• Case Study: Chime (digital bank) was founded by former Visa executives. It chose Sacramento and Kansas City as test markets (not San Francisco) to avoid "designing for a 27-year-old software engineer." It now has 2 million cardholders, adding 175,000 users monthly.
• Mechanism Breakdown: Chime attracts users with features like no overdraft fees and automatic savings, generating revenue from interchange fees. Walk emphasizes its success stems from empathy for "overlooked users."
• Extrapolation: Walk believes the next generation of banks won't be "Citibank with a cool card" but a redefinition of services. He warns investors to distinguish between "tactics" (e.g., transparency) and "values" (e.g., user trust), the latter needing adjustment with scale.

5. VC Returns: Macro Doesn't Matter, but the Exit Environment Needs Attention

Walk believes that for small funds (<$100 million per fund), macro valuation fluctuations have limited impact, but attention must be paid to the influence of large funds like SoftBank on the exit environment.

• Data Chain: Homebrew invests in 6-8 projects per fund. Walk states that "ownership trumps price." He cites Cruise (autonomous driving), which was acquired by GM 18 months after an early investment, with its valuation rising from $1 to $1 billion.
• Extrapolation: Walk believes SoftBank's "big checks" could alter corporate governance (e.g., board shakeups, founder changes). He advises entrepreneurs to let SoftBank invest in "second-tier" companies rather than the best ones.
• Uncertainty: Walk acknowledges that if a "private IPO" trend emerges, he may need to sell some shares in growth rounds to return capital to LPs.

Position Moves

Position	Guest Stance	Key Data
Second Life (Linden Lab)	Neutral (historical experience)	500,000 paying users, operating for 18 years, profitable
YouTube	Bullish (tool platform)	4 billion daily views, Content ID system
Anchor	Bullish (invested)	Accounts for 1/3 of iTunes podcasts, seed round investment
The Skimm	Bullish (invested)	7 million readers, 80% women, seed round investment
Building Connected	Bullish (invested)	160,000 business users, processes $100 billion in projects monthly
Chime	Bullish (invested)	2 million cardholders, adds 175,000 monthly
Cruise	Bullish (exited)	Acquired by GM, early investment
Shield AI	Bullish (invested)	Public sector AI, a16z participated in subsequent rounds
Outlier	Bullish (invested)	AI-enhanced BI for e-commerce anomaly detection
True Accord	Bullish (invested)	Debt collection platform using machine learning
Ipsy	Neutral (case study)	Hundreds of millions in annual revenue, based on YouTube creators
SoftBank Vision Fund	Risk warning	May alter corporate governance

Judgments Worth Remembering

1. "Good problems should be solvable and scalable" (Hunter Walk): Walk replaces TAM with "problem size" (large, urgent, valuable), arguing that Building Connected's TAM was only $100 million, but the problem's value far exceeds this.

2. "The leading indicator for the shadow economy is attention flow" (Hunter Walk): Walk believes attention growth in areas like esports and Twitch foreshadows future dollar flows, and investors should focus on the "attention shadow economy."

3. "Platforms should help creators make money, or they will leave a competitive gap" (Hunter Walk): YouTube achieved a closed loop through Content ID and creator grants, while early Snapchat and Instagram did not, leading to creator churn.

4. "VC returns: ownership trumps price" (Hunter Walk): For small funds, macro valuation fluctuations have limited impact; the key is finding 6-8 "power law" projects.

5. "The opportunity in fintech lies in data-driven better experiences" (Hunter Walk): Chime chose Sacramento as a test market to avoid "designing for a 27-year-old software engineer," successfully attracting overlooked users.

6. "SoftBank should invest in second-tier companies" (Hunter Walk): SoftBank's big checks may alter corporate governance, and founders should choose carefully.

7. "Founders most need help with product-market fit and strategic focus" (Hunter Walk): Walk believes early founders often get caught up in "tactical execution" while ignoring the "forest" (long-term strategy).

8. "Second Life's 'Burning Man' model limits user scale" (Hunter Walk): The open environment attracts core users, but the "desert effect" hinders mass participation; platforms need to balance openness with governance.