Y Combinator Startup Podcast
Y Combinator Startup Podcast

Fintech 3.0: Now Is The Best Time To Build In Crypto

We are entering the era of Fintech 3.0. Regulatory clarity, growing consumer adoption, and low-cost chains have paved the way for a golden age of building in crypto — and at YC, Base, and Coinbase we want to fund builders to seize this moment. In this episode of Main Function, YC's Harj Taggar

Featured Speakers

Y Combinator HostJesse Pollack Guest

Topics Discussed

Episode Summary

Executive Summary: This podcast features a conversation between a YC partner and Jesse Pollack, founder of Base, discussing the "golden age of crypto building." They outline how recent advances—chain scaling, regulatory clarity, stablecoin maturity, and simpler wallets—have lowered barriers for founders. Key opportunities include stablecoins for global remittances and local economies, tokenization of traditional and new assets, and AI-crypto intersections. They emphasize solving real problems over tech-first approaches and urge entrepreneurs to leverage the new programmable, decentralized platform to disrupt legacy intermediaries. The talk covers FinTech evolution, Layer 2 vs. Layer 1 blockchains, stablecoin use cases, and a joint YC/Coinbase initiative to fund crypto startups.

Main Topics: FinTech Evolution and Crypto's Role (Priority: 5/5): The evolution from FinTech 1.0 (PayPal) to FinTech 2.0 (legacy system overlays) to FinTech 3.0 (building on a programmable crypto platform). Jesse Pollack explains how crypto now enables rewriting the financial system from scratch, making it more efficient and accessible globally. Layer 2 Scaling and Cost Reduction (Priority: 5/5): Layer 2 blockchains like Base sit on top of Layer 1 (e.g., Ethereum) to compress transactions, drastically lowering costs while preserving decentralization. Jesse contrasts L2 with Solana's all-in-one L1 approach. This scaling enables consumer apps like instant, cheap swaps. Stablecoins as a Killer Use Case (Priority: 4/5): Stablecoins (e.g., USDC) are the leading use case, providing programmable dollars to anyone globally. They enable remittances, savings, and business accounts in countries with weak currencies. Local stablecoins for currencies like the Brazilian Real or Nigerian Naira are an emerging opportunity. Regulatory Climate and Startup Opportunities (Priority: 4/5): Regulatory uncertainty previously forced startups to spend more on lawyers than engineers. With the GENIUS Act and other legislation, clearer rules now encourage innovation. Joint efforts like YC and Coinbase's Request for Startups aim to fund promising crypto ventures. Asset Tokenization and New Asset Classes (Priority: 3/5): Tokenization involves moving traditional assets (stocks, bonds, real estate) onto the blockchain for programmability and global access. Equally exciting are new asset classes like creator content, where posts and creators become tradeable coins (e.g., on Base's social app). Intersection of AI and Crypto (Priority: 3/5): Crypto and AI are complementary: crypto provides verifiability (provenance of AI-generated content) and a native financial layer for AI agents to transact autonomously. This is seen as a key area for future startup innovation. Founder Attributes and YC's Investment Criteria (Priority: 2/5): YC seeks builder-founders who are technically skilled, understand the technology (e.g., have written a smart contract), and embody "based" values (hard work, ethics, creativity, team-first). Teams from any region can succeed due to crypto's level playing field.

Key Arguments: Implements a demo conclusion example The "golden age of crypto building" is here because infrastructure (chain scaling, stablecoins, wallets, regulation) has matured, making it possible to build consumer applications at low cost. Stablecoins' killer use case is providing dollar access to anyone globally for remittances, savings, and business, with neobanks like DollarApp and Aspora growing rapidly. Tokenization of all asset classes (equities, bonds, real estate) and creation of new asset classes (e.g., creator content as assets) will unlock massive value. AI and crypto are symbiotic: crypto provides verifiability and a native transaction layer for AI agents, which will be essential for automated economic activity. Entrepreneurs should focus on solving real customer problems rather than starting with crypto technology—users may not even know they're using crypto. Regulatory clarity (e.g., GENIUS Act, CLARITY Act) lowers barriers for startups, allowing them to spend more on engineering than legal fees.

Data Points: Cost of transaction: 5 cents down to 0.5–0.05 cents - Jesse Pollack on the shift in transaction costs for crypto applications due to chain scaling. Total stablecoin market size: ~$200 billion - Jesse Pollack highlighting the growth of stablecoins from launch to present. Lines of code reduced: 1,000 lines from 1 million+ lines - Jesse Pollack describing the reduction in code complexity for the Shopify commerce protocol.

Pivotal Quotes: "I think the reason I say no is because if you ask a friend or family member, I don't think they'd say, oh, yeah, I have had a magic moment with crypto. I think instead they might be fearful. They might not actually know what crypto is doing on a day-to-day basis. And so the thing that's powerful about that is that that's the best time for us to be building." — Jesse Pollack: Jesse Pollack responding to the question about whether crypto has had its "ChatGPT moment" — he says no, but argues that's the best time to build. "I think the thing that's shifting with crypto is those network effects are being turned inside out. Where it's when we're onboarding people on-chain and we're bringing them into these new systems, they're actually entering an open network where when you join the network, anyone can now start to participate." — Jesse Pollack: Jesse Pollack explaining the paradigm shift in how crypto turns network effects inside out, enabling open participation. "And the crazy thing is that after nine months of work, we translated into a smart contract, and that smart contract ended up being about a thousand lines of code." — Jesse Pollack: Jesse Pollack describing how the Shopify commerce payments protocol was rewritten as a simple smart contract, illustrating the efficiency gain.

Implications: For listeners: crypto has matured into a practical platform for building 10x better financial products. Founders should focus on real-world problems (remittances, local stablecoins, asset tokenization) and not just speculation. The convergence of regulatory clarity and scalable infrastructure means now is the time to disrupt legacy systems and intermediaries. The AI-crypto synergy opens further frontiers.

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We help founders make something people want. The Y Combinator Podcast is where builders talk about building. From the earliest days of an idea to scaling a company that changes the world, YC partners and founders share real stories, lessons, and tactics from the frontlines.

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