S16 E61: Alan Szepieniec on Privacy, Scaling & Quantum Resistance

Alan Szepieniec is a cryptographer & systems architect who specializes in Zero Knowledge proofs. He created Neptune Cash, a L1 network which combines ZK STARKs with Proof of Work in order to have a money system that's private, scalable & quantum resistant.

Time stamps:
00:00:00 Intro & Sponsors
00:02:30 Welcome Alan Szepieniec
00:03:02 Alan's Background in Cryptography & Libertarianism
00:05:15 Path to Bitcoin & Privacy Disillusionment
00:07:30 Privacy as Essential for Fungible Money
00:09:44 Network-Level Privacy & Censorship Resistance
00:12:15 Debate on Privacy Improvements in Bitcoin
00:14:01 Scalability Trade-offs with Recursive ZK Proofs
00:17:26 Lightning Network Privacy Limitations
00:22:39 Lightning's Potential for High-Frequency Trading
00:26:41 Custodial Risks & ZK-Proven Custodians
00:31:21 Sponsor: Unstoppable Wallet
00:33:17 Sponsor: Sideshift.ai
00:34:20 ZK-STARKs Explained & vs ZK-SNARKs
00:36:12 Quantum Resistance & Transparent Setup
00:41:56 Drivechains (BIP 300) & STARK Integration Potential
00:44:58 OP_CAT vs Custom Opcodes for STARK Verification
00:49:46 Why Coinjoins Aren't Sufficient for Privacy
00:56:27 Lightning's Unique Privacy Properties
00:56:50 Halo 2 & Removing Trusted Setup from SNARKs
00:58:44 Zcash L2 on Starknet
01:00:26 Why ZK-STARKs on Layer 1
01:03:20 Neptune Cash: Privacy, Scalability & Smart Contracts
01:07:33 Custom STARK Engine & Assembler Language
01:09:09 Proof-of-Work Design & GPU Mining
01:14:08 Inflation Bug & Network Relaunch
01:17:13 Decentralization Roadmap
01:19:00 Current Drawbacks: UX & Proof Generation
01:22:39 Node & Transaction Hardware Requirements
01:29:36 Quantum Computing Threats Discussion
01:33:01 Satoshi's Coins & Quantum Risks
01:36:38 Store of Value vs Medium of Exchange
01:43:13 Regulations Hurting Adoption
01:45:40 Monero Talk & Signatureless Transactions
01:47:58 Monero vs Bitcoin Communities
01:54:06 Adding Lightning Network to Neptune Cash
01:55:06 Lightning Network & Atomic Swaps Potential
01:56:48 Removing Centralized Exchanges via Bridges
01:57:17 Neptune Cash Lightning Network Plans
01:58:36 Prioritizing Faster Proving & Smart Contracts
02:00:36 Rapid Fire: Max Supply (40.5M after burn)
02:01:24 Block Time (9.8 minutes) & Difficulty Adjustment
02:01:56 Block Size (8 MB limit)
02:02:21 Elevator Pitch for Neptune Cash
02:03:17 Sidechain/Drivechain/Rollup on Bitcoin?
02:04:33 Privacy Comparison: Neptune vs Zcash vs Monero
02:05:38 Mutator Set vs Nullifier Set Explained
02:06:48 Privacy Ratings (Zcash 8/10, Monero 9/10 future, Neptune 6-7/10 + scalability bonus)
02:09:18 Scaling Ratings (Bitcoin 9/10, Neptune 8/10 future, Zcash/Monero 6/10)
02:12:24 Price Movement During Interview & Shitcoin Debate
02:14:54 Premine vs Fair Launch Discussion
02:17:35 Ethereum Premine Success & Grin vs Beam
02:19:10 Zcash Dev Fund Model
02:22:17 Building Circular Economies & Network Effects
02:27:04 Could Bitcoin Become Like Neptune Cash?
02:30:44 Connection Issues & Wrap-Up
02:33:05 Legacy UTXOs & Quantum Vulnerability
02:35:09 Where to Follow Neptune Cash & Alan
02:37:09 Is Satoshi an AI/Time Traveler?
02:38:46 Final Thanks & Goodbye