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Dennis Hackethal

Dennis Hackethal

I’m a software engineer, author, and translator. I study the mind, write and translate books, and build websites and tools for thinkers.
“Learn from failure.” Photo by Brett Jordan / Unsplash

Fallibilism vs. Cynicism

Man can err, and by an effort, he can learn from his mistakes. But is he always wrong, no matter how hard he tries?
Dennis Hackethal 18 Feb 2026
Files. Photo by Leiada Krözjhen / Unsplash

Maybe Publishing the Epstein Files Was a Bad Idea

When the people who claim to be on the victims’ side repeatedly make elementary mistakes, when they’re being led by their emotions, it helps the criminals, who can then reasonably call their opponents’ credibility into question.
Dennis Hackethal 04 Feb 2026
Photo by Aditya Romansa / Unsplash

Consider This Before You Have Kids

What are valid reasons to have a child? How can you prepare for parenthood?
Dennis Hackethal 01 Feb 2026
A ‘free-rider’ jumping over subway turnstiles.

Simple Solution to the Free-Rider Problem

I recently stumbled upon a curiosity called the ‘free-rider problem’. It’s a curiosity because Wikipedia describes it as “a type of market failure that occurs when those who benefit from … public goods … do not pay for them or under-pay.” How can it be a market failure if it affects public goods?
Dennis Hackethal 13 Jan 2026
Are Private Lessons Immoral?

Are Private Lessons Immoral?

Imagine some parents offer you money to teach their son math. You want your lessons to be fully voluntary, so you need to make sure he wants to learn. But how can you know that?
Dennis Hackethal 07 Jan 2026

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