Circle of Competence 101

Warren Buffett and Charlie Munger often reference the importance of knowing the boundaries of your circle of competence.

But what is a Circle of Competence and how does it work?

Here's Circle of Competence 101!

1/ First, a few definitions.

A Circle of Competence is the set of topic areas that align with a person's expertise.

If the entire world of information were to be expressed in a circle, an individual's Circle of Competence is the small sub-circle that represents their expertise.
2/ The idea surfaced in the 1996 BH annual letter.

"You don’t have to be an expert on every company...you only have to be able to evaluate companies within your circle of competence. The size of that circle is not very important; knowing its boundaries, however, is vital."
3/ A Circle of Competence is built over time.

It is built through experience, reading, dedicated study, and effort.

It is dynamic, not static.

It can expand as you deepen your knowledge in new areas. It can contract if you fail to nurture your existing areas of expertise.
4/ To engage this mental model in your life, there are two key processes to go through:

(1) Identify what falls within your circle
(2) Identify the boundaries of your circle

(1) is all about figuring out what you know, while (2) is about humbly admitting what you don’t.
5/ Let’s look at a few examples of where we see the Circle of Competence in action and how it can help you win.

In investing?

Berkshire Hathaway provides the classic example of investing success from sticking within the boundaries of your Circle of Competence.
6/ Warren Buffett and Charlie Munger have consistently passed on investment opportunities that fell outside of their respective Circles of Competence.

At times, it has led to what might look like big misses, including failing to see the potential and invest in Google and Amazon.
7/ But while you hear about these misses (“the anti-portfolio”), you don’t read about all of the bad decisions it saved them from making.

As Munger once said, you can become a consistent winner by “trying to be consistently not stupid, instead of trying to be very intelligent."
8/ In business?

The best operators know their core competencies and are honest about their incompetencies.

The visionary CEOs hire field general, execution-focused COOs.

The field general CEOs hire visionary product leaders.

Own your competencies, outsource the rest.
9/ So how can you implement the Circle of Competence model into your life?

First, identify your circle and its boundaries.

What topics do you know more about than most people?

What topics do others look to you on?

What are you constantly excited by and learning more about?
10/ Next, be ruthlessly honest with yourself about that circle and its boundaries.

Build checks into your decision process that pressure test whether you are remaining true to your Circle of Competence.

Consistently sticking to your circle will lead to good long-term outcomes.
11/ Finally, keep expanding and deepening your Circle of Competence.

Embrace intellectual curiosity!

Is there a new topic you are excited about? Read everything you can get your hands on.

We live in an unprecedented era of access to information.
12/ You no longer need to pay a big tuition bill to learn something new.

You can seek out thought leaders, ask them questions, read their articles, listen to them speak.

It is truly remarkable. Take advantage!

You may just find that your Circle of Competence begins to grow.
13/ So that is Circle of Competence 101. This one sits alongside First Principles Thinking and Second-Order Thinking for me in the realm of foundational topics.

For more, check out the resources below:

https://t.co/ONfwxuZQDd

https://t.co/l5U0yI2gmx

https://t.co/3GgWBNiwyb
14/ As you continue to build your Circle of Competence, I highly recommend checking out @ShaneAParrish and @farnamstreet for high-signal content that has been critical in my development.

You can subscribe to their weekly newsletter below. https://t.co/OkTeX0rMej!
15/ And for more educational threads on business, money, finance, and economics, check out my meta-thread below.

Turn on post notifications so you never miss a thread! https://t.co/53UhhfzIcp

More from Sahil Bloom

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1/ Feels like a good time to tell the story of how I went from broke to a millionaire to broke again in 2017/18 again...

Yesterday was brutal for some people...

Losing life-changing money sucks, losing any money sucks...you can chase the market or you can change your strategy.

2/ The original thread is gone but you can read it here.

https://t.co/cLLNs75rB0

tl;dr
- Traded $32k to $1.2m
- Thought I was a genius
- Made poor investments
- Didn't conserve capital
- Peaked at 150 BTC
- Lost nearly all of it

2 weeks from losing my house + no income. Oops.

3/ I am going to assume you are in it for the money rather than the tech. Yeah, you might Tweet about the amazing blockchaining of cross-border payments and oracles yadda yadda...really, you are in it to make money.

If you are really in it for the tech, go and build something.

4/ Okay, so if you want to make money, trading is super hard, you are trading against:
- Better traders than you
- People who can move markets
- Unknown information

And if you are trading with leverage you might blow up your account with the volatility.

5/ If you are not trading, you are investing. Okay, so what are you investing in?

I made the decision that the crypto with the best opportunity of existing in 10 years is #Bitcoin:
- Solves a genuine problem
- The right tech
- A proven track record
TradingView isn't just charts

It's much more powerful than you think

9 things TradingView can do, you'll wish you knew yesterday: 🧵

Collaborated with @niki_poojary

1/ Free Multi Timeframe Analysis

Step 1. Download Vivaldi Browser

Step 2. Login to trading view

Step 3. Open bank nifty chart in 4 separate windows

Step 4. Click on the first tab and shift + click by mouse on the last tab.

Step 5. Select "Tile all 4 tabs"


What happens is you get 4 charts joint on one screen.

Refer to the attached picture.

The best part about this is this is absolutely free to do.

Also, do note:

I do not have the paid version of trading view.


2/ Free Multiple Watchlists

Go through this informative thread where @sarosijghosh teaches you how to create multiple free watchlists in the free


3/ Free Segregation into different headers/sectors

You can create multiple sections sector-wise for free.

1. Long tap on any index/stock and click on "Add section above."
2. Secgregate the stocks/indices based on where they belong.

Kinda like how I did in the picture below.

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