Read Old Books You Know Nothing About
With ~50–100 books left in a lifetime, spend them on time-filtered classics in domains you're ignorant of.
- Difficulty
- Easy
- Time to result
- ~ongoing to results
- Steps
- 3
- Confidence
- 88%
A deliberate reading strategy for leaders. Because you'll realistically read only 50–100 books in your life, you can't afford low-quality or ephemeral content. Younis reads old, well-regarded books — time filters out the noise so you get high signal — and specifically hunts domains he knows nothing about, then finds the single best book there to fill the blank.
Origin
Younis's personal reading philosophy, aligned with Charlie Munger's observation that highly successful people read constantly; contrasted with Marc Andreessen's 'barbell' of today's news plus decade-old books.
Core principles
- 01Time is the best filter: old, well-regarded books have had the noise removed, leaving signal
- 02Your lifetime book budget is tiny (~50–100), so quality selection matters enormously
- 03Broad, diverse inputs enrich judgment the way diverse training data enriches an LLM
- 04The test of a great book is that it changes your existing framing on life
How to run it
- 1
Default to old and well-regarded over new
Bias your reading toward books that have survived a long time and are broadly respected. Time has already filtered out low-quality ideas, so you get concentrated signal instead of noise. Skip most new releases.
Pro tip Physical bookstores still work as a discovery surface for these enduring 'pillars of human ideas.'
Watch out Younis admits exceptions (e.g. reading a new vibe-coding book against his own heuristic) — the rule is a strong default, not a dogma.
- 2
Hunt for domains you know nothing about
Survey the universe of ideas — philosophy, history, religions like Jainism, the rise of feudal Japan, Roman history — and find the areas where your knowledge is thin. Younis picked up SPQR precisely because he only knew Roman history at a high level.
Pro tip Ask yourself directly: 'What don't I know anything about?' Then go find the single best piece of material in that space.
- 3
Let the diverse inputs reshape your framing, then apply
Consume the ideas, then take responsibility for interpreting how they reflect on the business you lead or the technology you build. A well-rounded understanding of society and history makes you a better founder — not via a one-to-one rule, but through richer, more nuanced judgment.
Pro tip Use 'did it change my existing framing on life?' as the quality bar for whether a book earned its slot.
Watch out Resist demanding a simple if-then payoff from each book; the value is indirect and compounding, like broad training data improving a model.
In the wild
Younis realized he only knew Roman history at a surface level, so he sought out the best book in that space — SPQR — deliberately choosing a domain of his own ignorance rather than a familiar topic. He applies the same move across philosophy, history, and religions, always looking for the single best material in an unknown area.
→ A steadily filled map of the idea-universe that broadens the judgment he brings to leading a physical-AI company.
Common mistakes
Spending scarce reading slots on new, low-signal content
With only 50–100 books in a lifetime, reading un-filtered new releases wastes irreplaceable slots. Time-tested books give far more signal per book, which matters precisely because you'll read so few.
Only reading within what you already know
Staying in familiar domains yields diminishing returns. The compounding gains come from deliberately targeting areas of ignorance and reading the best book there, which broadens judgment the way diverse data enriches a model.
Is it for you?
Best for
A founder or leader who wants to build broad judgment and taste and reads too little to waste books on low-signal material.
Not ideal for
Someone needing current, fast-moving domain specifics (e.g. the latest tooling), where a brand-new book or today's sources beat a decades-old classic.
From the transcript
“read old books. Don't read anything new. Read read old books because time has filtered out a lot of the noise. So you get a…”
“You're going to read probably 50 to 100 books which is kind of crazy for the average person.”
“what don't I know anything about? And let me go find the best piece of material”
“When a piece of material changes your existing framing on life, this is this is good”
From the episode
The most successful AI company you’ve never heard of
Qasar Younis