Pedro Arantesrose
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Purposeful Stupidity
"Citizen-saboteurs" learned those instructions to sabotage organizations or governments institutions.
#bureaucracy
Zettelkasten, September 19, 2021
Newsletter V1
'The first goal is to improve my learning habit. It'd be amazing when I cultivate the habit of studying a topic per week, close it, share with other people, and start to read a new different topic. I hope I receive many feedbacks because it can improve the issues I investigate, and on top of that, I can meet amazing people.'
Articles, September 05, 2021
Reading time: 4 minutes
Exponential Technology
Exponential technologies are the ones that improve their price-performance basis by more than 10% per year for many decades.
Zettelkasten, September 02, 2021
Moore's Law
Moore's law is an observation that Gordon E. Moore made in 1965, saying that the number of transistors of an electronic circuit would double every two years, with the cost halved.
Zettelkasten, September 02, 2021
M/G/1 Queue
In queueing theory, an M/G/1 queue is a queue in which the arrivals are a Markovian, service has a general distribution, and a single server.
Zettelkasten, August 31, 2021
Octave Interval
Octave is the distance between a musical note, for example, C#, and another with the same name, the next C# higher or lower.
Zettelkasten, August 30, 2021
LNO Effectiveness Framework
LNO Effectiveness Framework helps you increase your impact on the organization by avoiding spending much time on low-leverage tasks.
Zettelkasten, August 29, 2021
Virality Potential Criteria
You can use these four criteria to validate potential virality: absurd, great name, unexpected, and simple.
Zettelkasten, August 22, 2021
Winner's Curse
The winner's curse is a tendency in which the winner of a bid in an auction pays more than the item's intrinsic value or true worth.
Zettelkasten, August 22, 2021
Network Effect
Network effects occur when a network's value increases for users as more people begin using it.
Zettelkasten, August 19, 2021
Accountability Psychological Trigger
You need accountability to build up credibility. So you have to do things under your name as much as possible, with risky.
Zettelkasten, August 18, 2021
Authority Psychological Trigger
People consider most the opinion of ones they believe to be better at something, whether because of hierarchy or because the person truly knows about the subject, as a doctor.
Zettelkasten, August 18, 2021
Vedas
Vedas are religious texts originating in ancient India. They constitute the oldest layer of Sanskrit literature and the oldest scriptures of Hinduism.
Zettelkasten, August 17, 2021
Endocrine Glands and Chakras Correlation
Yoga looks at chakras as the body's energy points, which has the almost exact location of the hormone-secreting glands of the endocrine system. These glands connect your mind and emotions to your body.
Zettelkasten, August 14, 2021
Fight or Flight
The fight or flight response is a biochemical reaction in animals that enables them to rapidly produce sufficient energy to flee or fight in a threatening situation.
Zettelkasten, August 14, 2021
Thalamus
It has several functions, such as relaying sensory signals, including motor signals to the cerebral cortex and regulating consciousness, sleep, and alertness.
Zettelkasten, August 14, 2021
Maslow's Hierarchy of Needs
It's a motivational theory in psychology comprising stages of human needs.
Zettelkasten, August 11, 2021
Base Chakra
This chakra connects you with your basic survival needs, procreation, interest in life, and sex drive.
Zettelkasten, August 07, 2021
Hormones
Hormones are your body's chemical messengers. They're any member of a class of signaling molecules that regulates physiology and behavior.
Zettelkasten, August 07, 2021
Testosterone
Testosterone is the primary sex masculine hormone.
Zettelkasten, August 07, 2021
Queue Service Process
The queue service process is the process in which the server accomplishes the work.
Zettelkasten, August 04, 2021
Queue Capacity Utilization
Queue capacity utilization is the amount of time the service process is working (not idle).
Zettelkasten, August 04, 2021
Cognitive Bias
A cognitive bias is a systematic pattern deviation of the norm or rationality in judgment because the individual constructed reality.
Zettelkasten, August 01, 2021
Heuristic
A heuristic is any problem-solving approach that employs a practical method that is not guaranteed to be optimal, perfect, or rational but is sufficient for reaching an immediate, short-term goal or approximation.
Zettelkasten, August 01, 2021
Anecdotal Evidence
Anecdotal evidence is a factual claim relying only on personal observation, collected in a casual or non-systematic manner.
Zettelkasten, August 01, 2021
Inductive Argument
An inductive argument is an argument where the author intends to show that if all premises are true, then its conclusion is not sure to be true, but instead, it's probably or likely true.
Zettelkasten, August 01, 2021
Critical Path
The critical path is the most extended sequence of activities in a project plan. The project is only completed on time only if you meet these activities.
Zettelkasten, July 28, 2021
Queueing Theory
It can provide essential insights to product developers because there're similar problems of unpredictable work arrival time and unpredictable task durations.
Zettelkasten, July 24, 2021
Markov Process
A Markov process is a random process in which the future is independent of the past, given the present.
Zettelkasten, July 24, 2021
VP of Engineering
VP of Engineering role faces inward. They're responsible for building the engineering team and establishing the engineering culture and operations.
Zettelkasten, July 23, 2021
Asymmetric Opportunity
An asymmetric opportunity is one in which the upside is much more significant than the downside.
Zettelkasten, July 22, 2021
Newsvendor Model
This model creates an scenario in which a newspaper vendor must decide how many copies of the day's paper to stock in the face of uncertain demand and knowing that unsold copies will be worthless at the end of the day.
Zettelkasten, July 22, 2021
Venture Backable Business
A venture backable business is a company whose business model has the potential to generate significant outsized returns.
Zettelkasten, July 14, 2021
Set-Based Concurrent Engineering
Set-Based Concurrent Engineering (SBCE) is a product development approach that allows multifunctional teams to ideates, develop, and communicates sets of conceptual solutions in parallel.
Zettelkasten, July 13, 2021
Marginal Analysis
It provides the lasting retention of information and skills.
Zettelkasten, July 08, 2021
Key-Value Database
Key-value database, or key-value store, is a data storage paradigm that allows you to store opaque data collection with an associated key.
Zettelkasten, July 06, 2021
Sunk Cost
Sunk cost is a cost that has already occurred and cannot be recovered. In other words, a sunk cost is a sum paid in the past that is no longer relevant to decisions about the future.
Zettelkasten, July 06, 2021
Brandolini's Law
It states that debunking false, facetious, or otherwise misleading information requires much more energy than producing it.
Zettelkasten, July 04, 2021
Pareto Paradox
Pareto Paradox states that there are usually more opportunities in the undermanaged 80% than the overmanaged 20%.
Zettelkasten, July 02, 2021
Design System
Design system provides convenient, centralized, and evolving guidelines and principles to create visual brand resources.
Zettelkasten, July 02, 2021
Pareto Principle
The Pareto Principle states that roughly 80% of the consequences come from 20% of the causes for many outcomes.
Zettelkasten, July 02, 2021
Matrix Determinant
It's a scalar value that is a function of the entries of a square matrix.
Zettelkasten, July 01, 2021
Vector Space
A vector space, or linear space, is a set of objects called vectors. It's possible scale by numbers, called scalars, and add these vectors together.
Zettelkasten, June 27, 2021
Proxy Variable
A proxy variable is a measurable variable that isn't directly relevant but is used in place of another unobservable or immeasurable variable.
Zettelkasten, June 23, 2021
Goodhart's Law
It stands that a measure ceases to be a good measure when it becomes a target.
Zettelkasten, June 22, 2021
From Reactive Planning Model to Natural Planning Model
Until some point, the project was manageable, but after some feature requests and bug reports, it became unfeasible. In addition, almost every bug fix or feature implementation broke other "uncorrelated" parts of the application. That slowed us down a lot because our client and his customers were using the software, and we had to rush to fix the new bugs (yes, we didn't have testing at that time).
Articles, June 16, 2021
Reading time: 5 minutes
Benjamin Franklin's Schedule
Benjamin Franklin's schedule is a scheme of employment for the twenty-four hours of a natural day.
Zettelkasten, June 16, 2021
A Letter to My Friend - Create
I like writing because it's timeless. It's telepathy. Maybe what you write now will reach someone that will need to read it, in another time, whether days or decades from now, in another space across the world. You'll be connecting your mind with theirs.
Articles, June 13, 2021
Reading time: 4 minutes
Radical Delegation Framework
This framework helps you assign and do work that must be done.
Zettelkasten, June 09, 2021
Natural Planning Model
It's the more effective way to think about projects and situations because it makes thinks happen sooner, better, and more successfully.
Zettelkasten, June 07, 2021
Reactive Planning Model
When a team starts a project without planning ahead, it's possible that the reactive planning model ensues.
Zettelkasten, June 06, 2021
Spacing Effect (Learning)
It shows that more information is retained in your long-term memory by multiple spaced-out study sessions.
Zettelkasten, June 05, 2021
Opportunity Cost
Opportunity cost is the loss of the benefit that could have been enjoyed if the best choice was chosen instead.
Zettelkasten, June 03, 2021
Context Switching
Each extra task or "context" you switch eats up 20-80% of your overall productivity.
Zettelkasten, June 02, 2021
Focus Brings Unconscious Support
If you're focused on something, your unconscious mind supports you in what you're focusing on.
Zettelkasten, May 31, 2021
Ownership May Prevent Parkinson's Law
If you have X time to complete some tasks and don't have enough motivation, why should you finish them in less time?
Zettelkasten, May 26, 2021
Daily Scrum
It's a Scrum ceremony whose purpose is to inspect progress toward the Sprint Goal.
Zettelkasten, May 24, 2021
Skydiving Terminal Velocity
When an object is in a skydiving fall, its velocity will be constant after enough time, considering that the drag force is proportional to the square of the speed.
Articles, May 23, 2021
Reading time: 5 minutes
Brainstorming
It's a situation where a group of people meets to think about a problem and try to have as many ideas as possible.
Zettelkasten, May 13, 2021
Distributed Cognition
It's a process of getting things out of your head and into objective, and reviewable format.
Zettelkasten, May 12, 2021
Slack and Efficiency
"Slack is the natural enemy of efficiency and efficiency is the natural enemy of slack."
Zettelkasten, May 10, 2021
My Story - The Dance Teacher
The worse was that I was not being the owner of my life and it was being ruled by others, not by me. So, I asked myself, "How long won't I live my life and I'll let others live it for me?" Trust me, that question turns my life upside down, in the best of sights.
Articles, May 09, 2021
Reading time: 4 minutes
ACID (Database Systems)
ACID (database systems) stands for atomicity, consistency, isolation, durability.
Zettelkasten, April 26, 2021
The Threefold Model for Identifying Daily Work
It helps you to identify the kind of daily work that you can be engaged in.
Zettelkasten, April 24, 2021
People Systematically Overlook Subtractive Changes
When faced with a problem, people tend to prefer solutions that add new elements rather than removing elements, even if removing is the more efficient solution.
Zettelkasten, April 23, 2021
System Mental Models
System mental models are models that are used to help you understand how a system works.
Zettelkasten, April 23, 2021
Decision Mental Models
Decision mental models are models that are used to make a decision.
Zettelkasten, April 22, 2021
Smart Contracts
Smart contracts are computer programs stored on a blockchain that will be executed when predetermined conditions are satisfied.
Zettelkasten, April 19, 2021
Atkinson-Shiffrin Memory Model
It's a model of memory proposed in 1968 by Richard Atkinson and Richard Shiffrin.
Zettelkasten, April 11, 2021
Long-Term Memory
It provides the lasting retention of information and skills.
Zettelkasten, April 11, 2021
Short-Term Memory
Short-term memory can keep information for somewhere on the order of 10 seconds up to 30 seconds, when the information is not being actively rehearsed.
Zettelkasten, April 11, 2021
Ideas in Open Loop
When you decide to do some task, obligation, or plan without executing it, the mind creates an open loop.
Zettelkasten, April 10, 2021
Pleasure Principle (Psychology)
It's the instinctive seeking of pleasure and avoiding of pain to satisfy biological and psychological needs.
Zettelkasten, April 09, 2021
Procrastination
Procrastination is the action of delaying or postponing something.
Zettelkasten, April 09, 2021
Mental Models
Mental models are frameworks, worldviews, representations, or explanations of how something works. They're how we understand the world.
Zettelkasten, April 06, 2021
Hyperbolic Discounting
This theory states that humans discount the value of a later reward, by the factor that increases with the length of the delay.
Zettelkasten, April 06, 2021
No B.S. Time Management for Entrepreneurs
This book is expressively for entrepreneurs and business owners who wear many hats—those who can't resist piling more responsibility onto his own shoulders, who has more great ideas that time and resources to take advantage of them, who runs (not walks) through each day. Your time is incredibly valuable to you, and you are constantly 'running out of it.'
Books, April 04, 2021
Reading time: 21 minutes
Dopamine
It's known as the "feel-good" neurotransmitter.
Zettelkasten, April 04, 2021
Social Media Addiction
Anxiety, depression, loneliness, and addiction are problems caused by social media addiction.
Zettelkasten, April 04, 2021
Dan S. Kennedy
One of the very highest paid direct-response copywriters in America.
Zettelkasten, April 03, 2021
Product/Market Fit
Product/market fit (PMF) means being in a good market with a product that can satisfy that market.
Zettelkasten, April 02, 2021
Organic Social Media
Is the way you post your content and let the platform distribute it organically.
Zettelkasten, March 30, 2021
Paid Social Media
You have more control about the public which will see your content.
Zettelkasten, March 30, 2021
Human Multitasking
Multitasking is the "ability" to perform more than one task or activity at the same time.
Zettelkasten, March 29, 2021
Last Mile in a Software Project
These final adjustments can have fewer tasks compared with the core, but it is the laborious part, then the time to finish it is almost as the core time implementation.
Articles, March 22, 2021
Reading time: 5 minutes
Startup Accelerator
It's fixed-term and cohort-based programs that include mentorship and educational components for startups.
Zettelkasten, March 14, 2021
Venture Building's Startups Problems
Startups created in Venture Buildings (VB) may have some problems.
Zettelkasten, March 14, 2021
Venture Capital
It's type of financing that invertors provides to startup companies and small business with a potential long-term growth.
Zettelkasten, March 14, 2021
Startup Incubator
The purpose of a startup incubator is to help entrepreneurs grow their business.
Zettelkasten, March 09, 2021
Startup Studio
It's an organization that creates startups following a repetitive process. It acts as a co-founder to startups.
Zettelkasten, March 08, 2021
Proof of Work
It is a form of cryptography zero-knowledge proof that one part, the prover, proves to others, the verifies, that they used some amount of computational resources to complete some task.
Zettelkasten, March 07, 2021
Scrum
Is describes a set of meetings/events/ceremonies, tools/artifacts and roles to help teams structure and manage their work.
Zettelkasten, February 25, 2021
Reading time: 3 minutes
Inflation
Inflation is the rise of the general prices of an economy in a period of time caused by money supply growth.
Zettelkasten, February 18, 2021
Money Supply
In macroeconomics, money supply is the quantity of the money in circulation that an economy have in a point of time.
Zettelkasten, February 18, 2021
The 90-90 Rule
When you finished 90% of any project, the remaining 10% will take the same amount of time of the fist 90%.
Zettelkasten, February 07, 2021
Last Mile Problem
The last thing to be done to something works/arrives/finishes.
Zettelkasten, February 06, 2021
Dunning-Kruger Effect
Is a cognitive bias hypothesis in which people with low ability at a given task overestimate their ability at that task.
Zettelkasten, January 30, 2021
Flow State (Psychology)
It's the most efficient state when doing a task.
Zettelkasten, January 28, 2021
Law of Triviality
People within an organization commonly give disproportionate weight to trivial issues.
Zettelkasten, January 07, 2021
Parkinson's Law
It stands that "work expands to fill the time available for its completion."
Zettelkasten, January 07, 2021
Five Habits for the Next Five Years
Habits are the less spent energy strategy that we can use to achieve goals in our life. Habits require more time to complete the objectives, require more consistency, but it lasts forever.
Articles, January 02, 2021
Reading time: 3 minutes
Lightning Decision Jam
Replace all open and unstructured discussion with a clear solving problem process.
Zettelkasten, August 10, 2020
Reading time: 3 minutes
AIDA Model
AIDA model helps understanding better the process or steps that the consumer goes through before purchasing a product.
Zettelkasten, August 08, 2020
Design - Density
Dense UI should be applied to display tables, lists and long forms because the user can scan, interact and compare the information easily.
Zettelkasten, July 03, 2020
Psychological Trigger
Psychological triggers are the stimulus that creates a reaction in a brain and/or body without he/she notices.
Zettelkasten, June 29, 2020
Better Writing
Write like you speak, do not try writing with more elegant prose.
Zettelkasten, June 09, 2020
Facts Don't Change Our Minds
It's hard to change someone's mind because we're telling them leaves some group, which causes fear of being alone about the new fact.
Zettelkasten, June 01, 2020
Reading Metacognitively
You try every time to make connections with another subject.
Zettelkasten, May 29, 2020
The Feynman Technique
It's a method that you can use the learn about anything.
Zettelkasten, May 29, 2020
Sleep in Two Shifts
A notable advantage of first and second sleep is that it provides two periods of increased activity, creativity, and alertness across the day, rather than one long period of activity in which sleepiness builds up across the day and the productivity wanes.
Zettelkasten, May 26, 2020
Reading time: 2 minutes
Chunking and Memory
Also, chunking improves our creativity because we need to create a meaningful connection among groups.
Zettelkasten, May 24, 2020
The Evolution of Anxiety
The Delayed Return Environment causes chronic anxiety and stress because our brain was designed to live in an Immediate Return Environment.
Zettelkasten, May 22, 2020
Reading time: 2 minutes
Zettelkasten
Zettelkasten is a method in which you write down your thoughts in notes, tag and connect them over time.
Zettelkasten, May 21, 2020

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