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A weekly letter for people who have built something, have read the basics, and want to think harder about what comes next.

One breakdown of a financial decision most people
get slightly wrong, in ways that compound.

Join and the first thing you get is Your Portfolio on One Page, a single sheet for every private deal you own, and how to read it.
One decision, taken apart, every Monday.

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What it sounds like
"I can tell you what my rental properties earned last year without looking it up. I can't tell you what I gave my children. I've never added it up."
Issue 16, The number I've never added up

Past Newsletters

The Long Arithmetic: Issue 25

Nov 2, 2026

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5 min read

The Long Arithmetic: Issue 25

The question between your advisors

Alina Trigub
Alina Trigub
The Long Arithmetic: Issue 24

Oct 26, 2026

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5 min read

The Long Arithmetic: Issue 24

Work paid you twice

Alina Trigub
Alina Trigub
The Long Arithmetic: Issue 23

Oct 19, 2026

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4 min read

The Long Arithmetic: Issue 23

Alina Trigub
Alina Trigub
The Long Arithmetic: Issue 22

Oct 12, 2026

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5 min read

The Long Arithmetic: Issue 22

Alina Trigub
Alina Trigub
The Long Arithmetic: Issue 21

Oct 5, 2026

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6 min read

The Long Arithmetic: Issue 21

Alina Trigub
Alina Trigub
The Long Arithmetic: Issue 20

Sep 28, 2026

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5 min read

The Long Arithmetic: Issue 20

Alina Trigub
Alina Trigub
Show More

Past Articles

Wealth Changes Shape After a Certain Number

May 8, 2026

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1 min read

Wealth Changes Shape After a Certain Number

Alina Trigub
Alina Trigub
The Most Expensive Sentence in Investing

May 7, 2026

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1 min read

The Most Expensive Sentence in Investing

Alina Trigub
Alina Trigub
Enough Is Not a Feeling

May 6, 2026

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1 min read

Enough Is Not a Feeling

Alina Trigub
Alina Trigub

The Long Arithmetic

A weekly letter for high earners rethinking capital, enough, and what comes next.

© 2026 The Long Arithmetic.
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