Interview
a16z Podcast | Blockchain vs/and Bitcoin
- Bitcoin's Core Distinction: Bitcoin functions as the world's first fully functioning "digital bearer token," where ownership is defined solely by possession, enabling instantaneous settlement over the internet without the delayed "messaging and clearing" models of credit cards or securities exchanges.
- Technology Analogy: The shift to blockchain in finance is compared to Voice over IP (VoIP), representing a move from expensive, analog, multi-hop networks to a cheaper, IP-based architecture where the end-user experience remains largely familiar but the underlying efficiency and cost structure improve.
- Generalization of Asset Classes: Chain has generalized Bitcoin's architecture to digitize non-crypto assets, including gift cards, mobile airtime, energy credits, and stock certificates, creating merchant-issued digital currencies that do not rely on the Bitcoin network's specific consensus mechanisms.
- Architectural Separation: While Bitcoin's decentralized security model (mining) is essential for its specific protocol, this model is not required for digitizing private assets; private or permissioned blockchains can be deployed where a central issuer (like Starbucks or First Data) maintains control over the network.
- Bitcoin's Economic Resilience: The interviewee asserts Bitcoin will persist as long as the internet exists due to its robust economic incentive model for miners, with recent price surges (exceeding $400) driven by demand from China to circumvent capital controls and hedge against currency devaluation.
- Market Strategy for Institutions: Large financial institutions (e.g., NASDAQ, First Data) are partnering with Chain to establish proprietary networks to capture early "winner-takes-most" network effects, aiming to disintermediation clearing and settlement functions by moving assets and settlement onto a single digital ledger.
- Future Market Structure: The long-term vision includes a "smaller" financial system where intermediaries are replaced by cryptographic networks, featuring instant settlement (seconds vs. days), lower costs (eliminating $7+ per trade fees), and the potential for central governments to issue digital currency tokens.
- Implementation Challenges: Successful deployment requires C-level executive buy-in rather than IT-level innovation labs, as these projects involve strategic market disruption and complex re-engineering of legacy systems across siloed organizations.
- Timeline Expectations: While the market is currently in a "hype cycle" with significant rhetoric, the interviewee predicts the first serious networks will go live next year, with the first market-changing "winners" emerging by 2017.
- Block vs. Database: A blockchain differs from a traditional database in that it is shared across participants and, crucially, retains asset control with the owner of the asset via private keys rather than the database administrator.
- Fragmentation vs. Interoperability: The future is not a single global network but multiple interoperable networks designed for specific use cases (e.g., loyalty points, capital markets), with asset swapping remaining relatively straightforward due to common cryptographic standards.
- Colored Coins Evolution: The industry is shifting away from "colored coins" (layering assets on the Bitcoin network) toward building purpose-built networks from the ground up for specific asset classes to avoid the design limitations of the Bitcoin protocol.
- Sidechain Utility: Sidechains serve primarily as a "testbed" to innovate on Bitcoin's features (like microtransactions) by pegging Bitcoin to a separate network, but are less effective for non-crypto assets where the native Bitcoin currency is not desired.
- Prominent Native Applications:
- Social Media Integration: Platforms like ChangeTip enable micro-tipping on social networks, a use case difficult to execute with traditional banking rails.
- Remittance and Hedging: Bitcoin is heavily utilized for cross-border remittances and storing value to avoid corrupt officials or hyperinflationary domestic currencies.
- Liquidity of Loyalty Points: Blockchain aims to make isolated loyalty points and gift cards fluid, tradable assets that can be used across different merchant ecosystems (e.g., redeeming rewards across different brands).