// writing
Posts tagged #finance — Page 2
A mix of technical deep-dives, career reflections, and dispatches from the road.
tag: #finance

financeAug 5, 2026· 4 min
Self-Custody in 2026: The Seed Phrase Is No Longer the Only Way
Twelve words on a piece of paper used to be the whole story of crypto self-custody. Passkeys, MPC, and smart accounts have quietly changed what that phrase actually protects.
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financeAug 1, 2026· 5 min
Neobanks and the Sponsor Bank Model: Who Actually Holds Your Money
Your favorite fintech app probably isn't a bank. Here's the sponsor bank plumbing underneath it, why the ledger matters more than the logo, and what the Synapse collapse exposed.
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financeJul 29, 2026· 5 min
How to Read an Earnings Report Without Trusting the Headline
The number at the top of an earnings press release is the number the company chose to put there. Here is where the actual information lives: the reconciliation table, the cash flow statement, and the guidance.
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financeJul 25, 2026· 4 min
Dollar-Cost Averaging vs. Lump-Sum: What the Data Actually Says
Investing a windfall all at once beats easing it in about two-thirds of the time. Here is what the research actually says, and when dollar-cost averaging still makes sense.
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financeJul 22, 2026· 4 min
How Staking Actually Works: Validators, Rewards, and Slashing
A plain-English look at what happens under the hood when you stake crypto: how validators secure a proof-of-stake network, where the yield comes from, and what slashing really risks.
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financeJul 18, 2026· 5 min
Open Banking: How Apps Actually Get Your Bank Data
The mechanics behind connecting a budgeting app to your bank account, why screen scraping is dying, and where the US open banking rules stand in 2026.
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financeJul 15, 2026· 5 min
Tax-Loss Harvesting: How Selling at a Loss Actually Works
Tax-loss harvesting turns a losing position into a deduction, but the mechanics are fussier than the pitch suggests. Here's how the netting order, the wash sale rule, and the cost-basis catch actually work.
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financeJul 11, 2026· 5 min
How Automated Market Makers Price Your Swap
There is no order book behind a decentralized exchange swap. There is a formula. Here is the math that sets the price, and why liquidity providers can lose money while doing everything right.
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financeJul 8, 2026· 4 min
How a Card Swipe Actually Works: The Four-Party Model and Interchange
Tap your card and the money looks instant, but four different companies and a fee called interchange are quietly settling up behind the scenes. Here's how that machinery works and why it's suddenly a political fight.
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