Thoughts and ideas in shuffle mode. Essays on fintech infrastructure, AI tooling and business.https://www.ideasinshuffle.com/https://www.ideasinshuffle.com/p/new-home-same-address/https://www.ideasinshuffle.com/p/new-home-same-address/O blog saiu do Substack e ganhou casa própria no mesmo endereço — e daqui pra frente: ferramentas, fluxos e brincadeiras com AI.Wed, 29 Jul 2026 00:00:00 GMThttps://www.ideasinshuffle.com/p/stripes-159-bi-valuation-and-its/https://www.ideasinshuffle.com/p/stripes-159-bi-valuation-and-its/The four-layer money stack that changes everything. How a $1.2B bet and a secret blockchain are rewriting the future of digital payments.Mon, 02 Mar 2026 00:00:00 GMThttps://www.ideasinshuffle.com/p/why-fintech-apps-must-build-defi/https://www.ideasinshuffle.com/p/why-fintech-apps-must-build-defi/Hey builders,Tue, 24 Feb 2026 00:00:00 GMThttps://www.ideasinshuffle.com/p/are-we-actually-escaping-the-attract/https://www.ideasinshuffle.com/p/are-we-actually-escaping-the-attract/Base, Arc, Tempo: Who really controls your ‘decentralised’ rollup - and does it matter?Wed, 14 Jan 2026 00:00:00 GMThttps://www.ideasinshuffle.com/p/equities-onchain-will-be-bigger-than/https://www.ideasinshuffle.com/p/equities-onchain-will-be-bigger-than/How tokenized stocks will do for investing what stablecoins did for dollarsWed, 07 Jan 2026 00:00:00 GMThttps://www.ideasinshuffle.com/p/the-stablecoin-reading-list-i-wish/https://www.ideasinshuffle.com/p/the-stablecoin-reading-list-i-wish/Two years into studying stablecoins, I can finally articulate the problem I faced at the start: too much noise, not enough signal.Tue, 18 Nov 2025 00:00:00 GMThttps://www.ideasinshuffle.com/p/building-a-2nd-brain-with-ai-the/https://www.ideasinshuffle.com/p/building-a-2nd-brain-with-ai-the/The Fragmentation ProblemSun, 02 Nov 2025 00:00:00 GMThttps://www.ideasinshuffle.com/p/all-you-need-is-context-cursor-as/https://www.ideasinshuffle.com/p/all-you-need-is-context-cursor-as/Persistent, visible, and structured context is what separates tools you use once from tools that reshape how you work.Sat, 01 Nov 2025 00:00:00 GMThttps://www.ideasinshuffle.com/p/brazil-already-won-payments-now-its/https://www.ideasinshuffle.com/p/brazil-already-won-payments-now-its/Why Brazil should abandon Drex and regulate tokenised assets insteadWed, 22 Oct 2025 00:00:00 GMThttps://www.ideasinshuffle.com/p/feedback-loops-the-qrp-framework/https://www.ideasinshuffle.com/p/feedback-loops-the-qrp-framework/Question, requests and problems - The most underrated tool in product management.Fri, 11 Oct 2024 00:00:00 GMThttps://www.ideasinshuffle.com/p/beyond-cards-and-codes-unraveling/https://www.ideasinshuffle.com/p/beyond-cards-and-codes-unraveling/Before diving into the state of the Brazilian payment landscape leading to the introduction of Pix, it’s essential to understand the various components that make up a payment ecosystem.Sun, 22 Sep 2024 00:00:00 GMThttps://www.ideasinshuffle.com/p/from-traditional-transfers-to-pix/https://www.ideasinshuffle.com/p/from-traditional-transfers-to-pix/A three part series into the details of a infrastructure revolution in Brazil's payment market.Sun, 22 Sep 2024 00:00:00 GMThttps://www.ideasinshuffle.com/p/stablecoins-e-money-just-got-a-crypto/https://www.ideasinshuffle.com/p/stablecoins-e-money-just-got-a-crypto/How stablecoins are changing the payments landscape under our nose.Sun, 22 Sep 2024 00:00:00 GMThttps://www.ideasinshuffle.com/p/pix-foundation-the-elements-of-success/https://www.ideasinshuffle.com/p/pix-foundation-the-elements-of-success/From Traditional Transfers to Pix: Understanding Brazil's Payment RevolutionSun, 22 Sep 2024 00:00:00 GMT