“How to Use the Remaining 97% of Your Brain” – Book Summary Part 1
Hello!!
This time, I’d like to start a multi-part series on the book “How to Use the Remaining 97% of Your Brain” by Hideto Tomabechi!
Since I post about whatever topics I’m interested in at the moment, this blog tends to jump around quite a bit — thanks for understanding! (lol)
Table of Contents
- Announcement from a U.S. Government Agency
- What You Need to Master to Take Control of Your Life
- To Raise Your Level of Abstraction (Perspective), Let Go of Three Measuring Sticks
- Summary
Announcement from a U.S. Government Agency
It appears that humanity is currently living in the fastest-changing era in history.
The amount of information contained in just one week of the New York Times exceeds the total amount of information a person would encounter in their entire lifetime in the 18th century.
Moreover, the volume of information generated this year is said to surpass that of the past 5,000 years combined.
Incredibly, the information produced by humanity is reportedly doubling every week.
According to a report from a U.S. government agency, it is estimated that 65% of children entering elementary school in the U.S. today will end up working in jobs that do not currently exist.
Amazing, isn’t it?
In other words, this suggests that we may be learning information today that could be obsolete by tomorrow.
What You Need to Master to Take Control of Your Life
To live the life you truly desire, the key is to fully harness the power of your brain.
The specific skills required for this include:
- The ability to influence others
- The ability to achieve your goals
Currently, we are only using a small fraction of our brain’s potential.
Why? Because our neural pathways haven’t been sufficiently trained.
In other words, we lack experience.
When you gain a large amount of experience, your neurons are trained accordingly, and a vast number of neural patterns are formed.
To unlock more of your brain’s potential, you need to learn new knowledge and theories that you’ve never encountered before.
The brain doesn’t learn from the same repeated stimulus — it needs new stimuli.
However, the brain cannot recognize knowledge it has never encountered.
This is because the brain understands everything by connecting it to what it already knows.
It can only recognize things that fall into categories it has seen or experienced before.
For example, a person from the Stone Age wouldn’t recognize a smartphone as a smartphone if they saw one.
That’s why we need to engage in learning that uses our existing knowledge as a foundation, gradually expanding into new areas so we can recognize and comprehend unfamiliar concepts.
To Raise Your Level of Abstraction (Perspective), Let Go of Three Measuring Sticks
There are people in the world who are troubled when more individuals begin to think with a higher level of abstraction — in other words, from a broader perspective.
These people are often those in positions of power.
They seek to maintain control and monopolize wealth for themselves.
Their aim is to manipulate society according to their will.
Such powerholders instill in people the belief that climbing to the top of the hierarchy is the ultimate goal.
But that is the mindset of a slave.
The more “ideal” you become for society, the more “excellent” you are as a slave.
In Japan’s education system, there is a structure designed to prevent anyone from falling behind — but in a sense, this system could be seen as mass-producing obedient workers, or “slaves.”
To Raise Your Level of Abstraction (Perspective), Let Go of These Three Measuring Sticks
Raising your level of abstraction means letting go of the following three “measuring sticks”:
① Other People’s Values (Dream Killers)
Dream killers are the people who discourage your dreams,
those who force the belief that you must climb the hierarchy to be successful,
and those who say, “You can’t do it.”
You are you. Comparing yourself to others is meaningless.
② Society’s Values
As mentioned earlier, those in power plant the idea that climbing the hierarchy is the only path to success.
In a competitive society, everyone ends up feeling like a loser and becomes unhappy —
because no one can be number one in every field.
③ The Imaginary You
Have you ever thought, “If only I had gotten into that university, then by now…”?
Stop it immediately.
As long as you compare yourself to a hypothetical version of you,
you will continue to underestimate your real self.
We can never surpass the level of the self-image we hold.
In other words, as long as you undervalue yourself, success will remain out of reach.
By discarding these three measuring sticks, you can raise your level of abstraction — your perspective on life.
Summary
This time, I shared a summary of the opening section of “How to Use the Remaining 97% of Your Brain” by Hideto Tomabechi!
What did you think?
Maybe the content was a bit heavy…? (lol)
In Book Summary Part 2 and beyond, I plan to dive into topics such as:
- The skills to influence others
- The skills to achieve your goals
If you’re curious about “How to Use the Remaining 97% of Your Brain” by Hideto Tomabechi, I highly recommend picking up a copy and reading it for yourself!
It’s a truly fascinating book!
2025-06-25
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