🧵 How to Build Products That Truly Define Web3? Lessons from @KarimJDDA, Director of Product Engineering at @paritytech. 1️⃣ People use products, not protocols. Tech doesn’t change the world until it’s usable. Transformers existed years before ChatGPT — what changed was the interface. Web3 needs its “ChatGPT moment.” Build experiences, not whitepapers. 2️⃣ Don’t just decentralize, make the impossible possible. If your idea can be built in Web2, you’re thinking too small. Use Polkadot’s SDK to design systems that: can’t be censored 🧱 can’t be shut down 💡 don’t depend on corporate promises 🔒 3️⃣ Design for humans, not crypto experts. Your grandma should be able to use it. - Hide the blockchain jargon. - Deliver instant utility (value at n = 1). - Make the magic obvious, not the tech. 4️⃣ Build for truth, not trust. Don’t say “we promise not to misuse your data.” Prove cryptographically that you can’t. → Privacy by math, not policy. → Ownership by keys, not by ToS. → Permanence by design, not by uptime. 5️⃣ Think of Polkadot as a network of decentralized APIs. You can build your own “Stripe,” “AWS,” or “Dropbox”, but without gatekeepers. Each parachain = a specialized API: identity, storage, privacy, compute — composable, verifiable, unstoppable. 6️⃣ Solve real pain, not hypothetical ones. Ask yourself: - Does centralization cause real harm here? - Can only Web3 fix it? - Will users care enough to switch? If you can’t answer “yes” to all three, keep digging. 7️⃣ Verification over marketing. Open-source your code. Let skeptics verify. If users can check instead of trust, you’re building the future. 8️⃣ Remember the goal: We’re not building better versions of Facebook or Google. We’re building what they can’t. Protocols that empower users, not platforms that extract from them. The infrastructure is ready. Polkadot works. The SDK works. Now it’s on us to build products that make the impossible feel obvious.