Rob Ennals

Writing

Sometimes I write stuff. I currently mostly write on my Substack Blog, but I've also got some travel writing and Quora answers.

Events in the Past Are More Recent Than They Appear

I built a tool to help visualize history.

Feb 2, 2026·substack

The Social App where you only Post Once a Year

I've built a little social app called Slowpost.

Nov 15, 2025·substack

Going Phoneless

Ditching your smartphone is (mostly) possible, and will make you feel so much better.

Oct 7, 2025·substack

Mini Posts 5 - Status, Power, and Reason

Status Traps, The Purpose of a System is what it Rewards, A Non-cynical View of Colleges and Power, Thinking Too Much is Bad for Society, The Most Important Political Dimension is Certainty

Jul 26, 2025·substack

Using Codex Well (Experiences so Far)

The future of work is managing a team of AI agents to do work.

Jun 10, 2025·substack

Easy Robotics with a 3D Printer and Raspberry Pi

It’s pretty cheap and easy to make something fun.

Feb 10, 2025·substack

Mini-Posts Collection 4 - Election Edition

A brief history of angry elections, Is politics optimized for outrage, Can remote work save the world, What is Democracy and how can we save it, Watch out for number two.

Nov 3, 2024·substack

In Praise of the Beatitudes

Jesus' 9-bullet summary of morality has value even to non-Christians.

Sep 24, 2024·substack

Virtue is a Vector

Treating things as good vs bad is too simple.

Sep 10, 2024·substack

Mini Posts Collection 3 - August 2024

Compromise Coin, Will AI Detach Wealth from Ability, Power flows Up then Down, Lessons from Revolt of the Public, and Empirical Consequentialism

Aug 3, 2024·substack

Let GPT Be the Judge

Not everything that counts can be counted, but maybe GPT can measure it anyway.

Apr 4, 2024·substack

Work with Me at New Public

We are hiring a Software Engineer to work on Public Spaces Incubator.

Apr 1, 2024·substack

How AI Will Change Education

Education does lots of things for society. AI will change all of them.

Feb 16, 2024·substack

Highlights from my Quora Writing

I used to write on Quora. Here is some of what I wrote.

Jan 17, 2024·substack

Artificial General Horsiness

AI doesn't need to match all human intelligence to replace all human work. If it's faster and cheaper, we'll adapt the rest of the world around it.

Nov 11, 2023·substack

Mini Posts Collection 2 - Nov 2023

"Nothing makes sense and that's okay", "Mourning Facebook Past", "Why Tech Companies have so many Employees", "How Music Became Meaningless", and "Accepting Pain".

Nov 5, 2023·substack

Genocide isn’t Decolonization

I normally try to avoid overtly political posts on this blog, but this one seems important

Oct 20, 2023·substack

Mini Post Collection 1 - Sep 2023

Everything rots, How Facebook stole the Gaps, and other thoughts.

Sep 25, 2023·substack

Could Progressive Taxation Solve our Monopoly Problem?

Big companies are creepy, but so is antitrust action. Could more progressive taxation solve things better?

Sep 2, 2023·substack

Simulate the CEO

Do large organizations function like a single mind? What if we simulate that mind?

May 2, 2023·substack

I've Joined New Public

Let's build better digital public spaces.

Apr 27, 2023·substack

The Power of High Speed Stupidity

How rapid iteration allows us to create the incomprehensible.

Mar 17, 2023·substack

GPT is Rather Good at Feed Ranking

If ranking is as easy as saying what should rank highly, then lots of interesting things happen.

Mar 7, 2023·substack

Chatbots make Search interesting again

They could disrupt all four of the pillars that Google's business rests on.

Feb 7, 2023·substack

Eight Pro-Social Platforms that Didn't Work

It turns out that making an engaging platform that encourages civil discourse is hard.

Feb 2, 2023·substack

Great but Painful: The Origin of Every Successful Product?

Don't let people do new things. Make existing behaviors less painful.

Jan 20, 2023·substack

Free Speech Is The Wrong Problem

We need speech to flow in better ways.

Jan 14, 2023·substack

An Introduction

I guess I should say some words before we get started...

Aug 2, 2022·substack

What is consciousness?

Thought is like a Fourier transform of matter. A dual and equally real representation of reality.

Jan 1, 2016·quora

What can deep neural networks teach us about human thought?

A lot of lessons we've learned from building neural networks apply to people too.

Jan 1, 2016·quora

Does prayer work?

It works because your subconsciousness is listening, not because God is listening.

Jan 1, 2016·quora

What are the fundamental causes of peace?

Peace comes from the enforcement of mutually beneficial truces.

Jan 1, 2016·quora

Does God exist?

God exists in the same way that money, companies, and countries exist.

Jan 1, 2016·quora

Where do original ideas come from?

All ideas are incremental. If you think an idea is novel you don't know what it built on.

Jan 1, 2016·quora

Are sports programs in high school and college worthwhile investments?

Sports teach kids important lessons about resilience, pain tolerance, and risk.

Jan 1, 2016·quora

Which theory best explains why humanity screws up?

Society is a collection of games within games. Sometimes those games go wrong.

Jan 1, 2016·quora

Do schools in the US put enough emphasis on teaching students how to be moral, ethical people?

By focusing on tests, schools might actually be teaching immorality.

Jan 1, 2016·quora

What is it like to interview a terrorist?

Probably not the wisest decision of my life.

Jan 1, 2016·quora

What technological changes will create the most opportunities for new startups?

The biggest opportunities come from technology shifts that change the rules of competition.

Jan 1, 2016·quora

Which industries and jobs will self-driving cars disrupt?

Self-driving vehicles will transform transportation, logistics, and urban planning.

Jan 1, 2016·quora

How might technology make parenting easier in the future?

Technology could help parents monitor, educate, and connect with their children.

Jan 1, 2016·quora

What do organizations need to do to protect themselves from hackers?

Security requires assuming you will be breached and planning accordingly.

Jan 1, 2016·quora

How does one answer 'What's to stop Facebook from just implementing this feature?'

Big companies are often too slow, too distracted, or too constrained to compete with startups.

Jan 1, 2016·quora

What is the future of personal transportation?

The future is electric, autonomous, and shared.

Jan 1, 2016·quora

How did Silicon Valley become a hot spot for startups?

A combination of universities, defense spending, venture capital, and culture created a self-reinforcing ecosystem.

Jan 1, 2016·quora

Is Google evil?

Google tries to do good but faces difficult tradeoffs at scale.

Jan 1, 2016·quora

How can I get into a top university?

Focus on being genuinely interesting rather than checking boxes.

Jan 1, 2016·quora

What are some of the best studying techniques?

Active recall and spaced repetition beat passive reading.

Jan 1, 2016·quora

What are the best ways to invest money?

Low-cost index funds and avoiding panic are the keys to long-term wealth.

Jan 1, 2016·quora

What are the best tips for saving money on a wedding?

Remember that the wedding industry profits from making you feel inadequate.

Jan 1, 2016·quora

What are some good tips for writing an academic paper?

Write the abstract first, then make the paper match it.

Jan 1, 2016·quora

How do I speed read effectively?

Speed reading is mostly about knowing what to skip.

Jan 1, 2016·quora

What is the best way to change careers?

Find ways to demonstrate competence before you need to be hired.

Jan 1, 2016·quora

How can I become creative?

Creativity comes from combining ideas from different domains.

Jan 1, 2016·quora

How can I write better?

Write a lot, read a lot, and get feedback.

Jan 1, 2016·quora

What could cause US politics to become less polarized?

Changing media incentives and electoral systems could help reduce polarization.

Jan 1, 2016·quora

Who will win the 2016 US presidential election?

A prediction from before the 2016 election.

Jan 1, 2016·quora

What percentage of news on social media is fake?

The problem isn't just fake news but misleading framing of true stories.

Jan 1, 2016·quora

How should the US education system prepare students for the democratic process?

Schools should teach critical thinking and civil discourse.

Jan 1, 2016·quora

What mix of ideas from different political ideologies do you believe in?

Most people hold a mix of views that don't fit neatly into party lines.

Jan 1, 2016·quora

How do liberals and nationalists misunderstand each other on multiculturalism?

Both sides often argue against strawman versions of the other's position.

Jan 1, 2016·quora

Should creationism be taught in school?

Schools should teach how to evaluate evidence, not which conclusions to hold.

Jan 1, 2016·quora

Should someone who is tolerant tolerate someone who is intolerant?

The paradox of tolerance requires tolerating people but not always their actions.

Jan 1, 2016·quora

Why are American left-wing people called 'liberals'?

The meaning of 'liberal' shifted from economic freedom to social freedom.

Jan 1, 2016·quora

Eastern Europe, Middle East, and Africa

Four months traveling from Berkeley through Europe, the Middle East, and Africa. Balloons, bears, ancient Persepolis, Ethiopian festivals, and great white sharks.

Oct 31, 2010·travel

Around Peru in Seven Days

A whirlwind tour through Lima, Cusco, the Sacred Valley, Machu Picchu, and the Amazon jungle. From coca tea to bouncy castles.

Jul 21, 2007·travel

Simon and Rob Invade and Conquer France

17 days of cycling through France. Featuring crashes, rain, Coypu, the Tourmalet, racing Eric, and designer luggage.

Aug 2, 2001·travel