Sep 13, 2017 · 30m · top-founders
781: Crypto: What AirBnB Looks Like In Digital Currency World
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gold bands on the timeline = statements, start to end. Hover to read, click to jump. CC turns on captions
Host Nathan Latka interviews Ethereum pioneer and Slock.it co-founder Christoph Jentzsch about building a decentralized IoT sharing economy, blockchain scalability and governance, and the historic lessons learned from The DAO exploit.
How this conversation actually went
Every chapter scored 0–10 on four independent dynamics. Hover any point for the reasoning behind the score. Nathan holds 40.1% of the talking time here. How this is scored →
Nathan as informed peer 3.8 Guest teaching 4.4 Guest disagreement 1.4 Nathan pushing back 3.0
speaking balance: gold is Nathan, purple is the guest (3 minute bins)
Sharpest disagreement ▶ 12:38 Pushback against miner centralization framing
Christoph counters Nathan's claim that mining cartels control the network by asserting that users hold the ultimate authority via chain forks.
Hardest push from Nathan ▶ 9:57 Nathan challenges the illusion of decentralizationNathan aggressively challenges crypto's decentralization claims by arguing that miner fee bottlenecks resemble government control.
Biggest teaching moment ▶ 11:08 Christoph corrects economics of solo block miningChristoph explains why Nathan's suggestion to mine personal transactions to bypass congested blocks is economically irrational and misunderstands protocol limits.
Nathan holds their own ▶ 20:51 Nathan presses the Slock.it versus Airbnb business modelNathan challenges the core business model by asking how Slock.it extracts transaction fees if the lock hardware functions independently on-chain.
the scores for every segment, with the reasoning behind each
| Chapter | Topic | Nathan as informed peer | Guest teaching | Guest disagreement | Nathan pushing back | Why |
|---|---|---|---|---|---|---|
| Episode Preview: Christoph Jentzsch and Slock.it | 1 | 0 | 0 | 0 | Nathan introduces Christoph Jentzsch and his background with the DAO and Slock.it before running through introductory promos and sponsors. The interaction is limited to standard host framing. | |
| The DAO Concept and Early Ethereum Testing Roles | 4 | 5 | 1 | 2 | Nathan attempts to explain crypto with a railroad track analogy, but Christoph gently refines it to explain how ERC-20 tokens differ from native blockchain assets like Ether and Bitcoin. | |
| Blockchain Scalability Issues and Hard Fork Mechanics | 3 | 6 | 1 | 2 | Nathan references recent news regarding scaling debates, and Christoph provides a technical breakdown of 1MB block limits, miner transaction fees, and fork mechanics. | |
| Examining Network Decentralization and Miner Influence | 5 | 7 | 3 | 6 | Nathan strongly challenges the premise of decentralization by citing mining concentration in Asia. Christoph corrects Nathan's misconception about mining your own transaction to bypass queues and explains that user consensus ultimately supersedes miner leverage. | |
| The DAO Exploit and The Birth of Ethereum Classic | 5 | 6 | 2 | 5 | Nathan questions why Christoph calls the DAO attacker a thief given code-is-law ethos and challenges him on raising traditional VC rather than holding an ICO. Christoph defends the hard fork decision and details the legal and structural risks of contemporary ICOs. | |
| Smart Locks, IoT Devices, and the Decentralized Airbnb Vision | 5 | 6 | 3 | 5 | Nathan drills down on the difference between Slock.it and centralized incumbents like Airbnb, pushing on how Slock.it captures value without centralized servers. Christoph explains decentralized execution directly via smart contracts on IoT hardware. | |
| Evaluating Crypto Volatility and the Power of Programmable Money | 4 | 5 | 2 | 3 | Nathan questions why crypto founders still pay themselves fiat salaries if they believe in crypto. Christoph pragmatically explains tax obligations, high volatility, and shifts the definition from currency to programmable money. | |
| Slock.it Traction, Team Expansion, and Capital Raised | 4 | 2 | 1 | 3 | Nathan presses Christoph on device metrics, hardware manufacturing costs, and deployment numbers before transitioning into a mid-episode sponsor spot. | |
| The Famous Five Rapid-Fire Questions with Christoph Jentzsch | 3 | 3 | 0 | 1 | Nathan runs through his Famous Five rapid-fire format where Christoph reflects on the DAO smart contract bug as his biggest learning lesson. |
Statements from this episode (14)
Jentzsch: DAO Team Succeeded in Returning All Funds After Exploit
“Basically worked for giving everybody their money back, which we did succeed at, and yeah, that's a very short story, but there's, of course, a lot of things behind it.”
Jentzsch: The DAO raised $150M in Ether as largest crowdfunding ever
“The DAO collected a hundred fifty million dollars worth of Ether, so it was the largest crowdfunding back in its time.”
Jentzsch: Brave raised $35M in 30 seconds for the BAT token
“So one very, one example would be the BAT token for the Brave browser. They raised, I think it was thirty-five million in a couple of seconds, like 30 seconds or so.”
Jentzsch: Bitcoin Scaling Factions Will Likely Never Reach Consensus
“And that's what currently, there's a lot of discussions, people are against it, people are for it, and they try to find a consensus, but they are fighting for years now. So there is most likely no consensus ever.”
Jentzsch: A couple dozen miners could control Bitcoin's network
“And I still think it is decentralized, but maybe not as decentralized as many people think, because there's, yeah, there is a couple of dozen of Bitcoin miners who basically control, could control the whole network.”
Jentzsch: Blockchain users, not miners, hold ultimate governance power
“So the miners, they serve the blockchain, and yes, therefore they do have some control of it, but at the end, my opinion is, and everyone will give you some different opinions on this, is that the users are really in charge. If the users say, I will switch to …”
Jentzsch: DAO Attacker Is Morally a Thief Despite Exploiting Valid Code
“But from a moral point of view, you did take money, which didn't belong to him. That's why I would call him a thief.”
Jentzsch: DAO Attacker Took $50M But Left A 4-Week Resolution Window
“So we could just look and see how we did take fifty million dollars into a sub-account. But there was a rule in the smart contract which gave us about four to five weeks time to solve the problem.”
Jentzsch: Many 2017 ICOs Are Actually Illegal Unregistered Securities Offerings
“Because first I think a lot of those ICOs are actually not legal. So from a legal point of view, you're actually like issuing securities, some of them, not all of them.”
Jentzsch: 2017 ICO Craze Driven by Uninformed Retail Overfunding Startups
“I think a lot of the ICOs we see right now is people who do not understand what they are doing getting convinced by marketing people to put money into something they don't understand, and then those startups raise much more money than they actually need.”
Jentzsch: Slock.it Smart Locks Function Even if Slock.it Shuts Down
“If Slocket would go down, then the smart log would still work. It would still accept Ether as a payment because it would listen to the Ethereum blockchain. So as long as the Ethereum blockchain is still live and running, This log will always listen to it.”
Jentzsch: Currency Is Blockchain's Least Interesting Aspect
“I think currency is the least interesting aspect of blockchain for me right now.”