Tuga's bowl holds what it holds. The same bowl, the same scoop, every evening. From her side of the arrangement, dinner is a constant — one bowl, full, at seven.

From my side it isn't constant at all. The price of what goes in it has moved a great deal over the years, the tin got smaller, and the weight per scoop has quietly changed more than once. Same bowl, same cat, same satisfaction. Completely different quantity of my working life spent on it.

Which of us is measuring correctly? Both of us. We're measuring different things, and that's the whole subject of this article.

1. The Unit Decides What You Notice

Every measurement needs a ruler, and the ruler determines what's visible.

Measured in your own currency, bitcoin is a wildly volatile asset. Up 60% one year, down 50% the next, impossible to plan around, and your position's "value" changes while you sleep. This is the view everyone defaults to because it's the view every app shows by default.

Measured in sats, the picture inverts. Your holding only changes when you buy or sell. Every purchase adds units. A year of regular buying produces a line that goes up and never goes down, regardless of what the price did — because the price isn't in the measurement at all.

Same portfolio. Same decisions. Two completely different emotional experiences, decided entirely by which number you chose to look at.

2. What Each View Is Good For

Neither is the truth; each is useful for different questions.

Use sats to measure accumulation. "Did I follow my plan this month?" is a question about units, and it has a clean answer. This is also the view that makes a long bear market survivable — the fiat value is falling and your unit count keeps climbing, which is a more accurate description of what you're actually doing.

Use your own currency to measure obligations. Your rent is in currency. Your emergency fund is in currency. Your tax bill will be in currency. Anyone who tells you to stop thinking in fiat entirely has forgotten that the landlord exists, and that advice has genuinely hurt people who over-committed because their mental accounting had quietly switched units.

The practical rule: units for the thing you're building, currency for the things you owe.

3. The Trick Your Brain Plays With the Default

There's a reason the default view matters more than it should.

Your wallet showing a falling fiat number produces a small loss experience, repeatedly, on a position you have not sold and do not intend to sell. Nothing happened. No decision was made. But the feeling is real and it accumulates, and the accumulated feeling is what eventually produces a sale at the worst moment.

Switching the display to sats doesn't make you richer and doesn't change a single fact. It removes a daily stream of synthetic losses that were never yours to feel. That's not self-deception — the sats number is exactly as real as the other one, and it's the one that corresponds to what you actually control.

4. The Honest Limits

I'd be selling you something if I stopped there, so:

• Sats are not a unit of account for your life. Nothing you owe is priced in them. Measuring your net worth purely in sats is how people conclude they're wealthier than they are and then borrow against it.
• "Number of units" says nothing about whether the units are worth holding. This same framing applied to a failed altcoin produces a beautiful accumulation chart for an asset going to zero. The unit view only makes sense for something you have independently decided is worth owning.
• It can make you ignore your sizing. A position that's become too large relative to your life is a problem measured in currency, and the sats view will never show it to you.
• Cognitive relief is not a strategy. It's a tool for sticking to a plan. If there's no plan underneath, you've just changed how you feel about an unexamined position.

5. What I'd Actually Do

• Set your wallet to display sats. One setting, free, done in ten seconds.
• Track units accumulated per month as the metric of whether you're executing.
• Keep a separate, currency-denominated view that you look at quarterly, to check position size against your life — the question the sats view can't answer.
• Keep every obligation, every buffer and every plan involving other people denominated in currency, always.

That split is the whole practice. Build in one unit, owe in another, and never let the comfortable view answer a question it isn't equipped for.