Article
Scepticism, Falsifiability and Intellectual Humility
Is it better to doubt or to act with determination?
I extend my respect to the moderates and the curious minds amongst us, those who relentlessly seek understanding, whether in the realm of human interactions or in the pursuit of unravelling nature's mysteries. I admire thinkers like Cicero and Erasmus, champions of moderation in an age of emotional beliefs. I would rather listen to a moderate person who tends to doubt than a fanatic. A fanatic seldom tries to understand more deeply; he believes.
However, we must also recognise the significance of those who hold strong beliefs and are determined to act on them. They can change their lives and the world for the better in this way. They wield the power to influence (positively) individuals and entire crowds.
An Argument for Doubt: Scepticism and Falsifiability
This part is a continuation of the post: How I became a child again. I describe there how I began to doubt some things during my university studies.
Challenging erroneous ideas through scepticism brings us closer to true knowledge than any other approach I have encountered thus far. That is why I hold these principles dear:
- No theory can be definitively confirmed; it can only be definitively disproven.
- Let us evaluate theories based on the possibilities they offer for refutation.
- Information is always understood within a context; it is an interpretation.
- Thinking is hampered by both unyielding conviction and belief and by the dogma of relativism.
- I doubt, but I do not relativize.
These principles are not my own invention. The first two are the core of Karl Popper's falsificationism: a theory earns its standing not by being confirmed, but by remaining open to refutation. This is a form of fallibilism, the view that no knowledge is ever final, which Popper set against both dogmatism and relativism in what he called critical rationalism.
An Argument for Determination: Conviction Without Dogmatism
However, an insatiable desire for deeper understanding can sometimes dampen the zeal for decisive action. It can erode motivation. I see it in some who studied with me and sometimes in myself.
In everyday life, conviction paired with determination is an invaluable asset. I do not pass judgement on either thing; there are times when reflection serves us well and other moments when unwavering determination is needed.
Today, when I have to choose those with whom I act, I choose determined ones.
I listen carefully to the moderate and reflective, but I act with those with whom we agree on a common goal and are determined to achieve it.
Summary
Common questions on this article's topic
Is it better to doubt or to act with determination?
What is Karl Popper's falsifiability principle?
Why can excessive doubt be harmful?
Why can excessive conviction be harmful?
What does it mean that information is always an interpretation?
How do you choose who to work with?
What is falsifiability?
What is scepticism?
Who was Karl Popper and what is critical rationalism?
What is fallibilism?
What is relativism, and how does it differ from doubt?
What is dogmatism?
Related articles
Martin Heidegger was a German philosopher who fundamentally influenced several philosophical disciplines and also several academic fields. He did so through the way he thought about being and about human existence, and through the methods and procedures he used while doing it. He is also a controversial figure in history.
It was Thursday, 31 March 2022, when I handed over the last of my responsibilities to my colleagues, closed my laptop and went to the library. I left my job for several months and immersed myself in philosophy. And I am immensely grateful for it. Today I am, like most people, on a merry-go-round, and it is hard for me to stop and think about the fundamental questions of my own life.
If I have learned anything from this experience, it is that my life is not driven by something predefined.
More articles
The development of artificial intelligence changes how we look at which paths in life make sense. Which studies and which profession to choose.
It was September 2023. My life, my work, everything was completely different from now. It was simpler. I owned almost nothing. I needed to film an advert, I went up to a floor inside the company where the product I needed for that advert was, and there I noticed her for the first time. She laughs at me when I describe it like this, but at that moment the universe told me, that is her.
How and why I am gradually leaving social media and the big platforms. When I read that Meta is testing a new way to charge for organic posts that link outside its platform, it confirms how right I was to become steadily less dependent on the big platforms and on social media. It does not mean I have left them completely. It means that whether or not I stay in touch with my readers depends on them less and less, and today almost not at all.
One of my family members described a firm that has its data in several different tools, and its employees still join it by hand, in spreadsheets. That is the ordinary state of firms. When somebody tells such people not to do it by hand and to use AI, they will not understand. Most firms do not even have the basic connectors between the tools they use. These firms need help with AI transformation.
The same task, two models. Fable 5 against Opus 4.8. On paper Fable is the better model, with a larger context and stronger specs. And still it lost. Opus handled the task with a single round of checking for 721,000 tokens, while Fable needed nine rounds and burnt through 2.78 million tokens. The difference was not in the model, but in how I set the task. And I know it, because I measured it.
A few weeks ago I installed a small local AI model on my laptop that watches a live camera feed. I turned the webcam on in the dark, and in near total darkness it recognised me and the objects in the room. That such things exist, I have known for a long time. What opened my eyes was the accessibility. I installed it in one prompt, free, and it runs entirely on my machine, sending data nowhere.

I once wrote about building my own privacy-friendly analytics tool. It had bot detection from the first version, yet it was not enough. Direct visits took a strangely high share of my traffic. When someone claims that 20% of their visits are bots and 80% are humans, I used to think the same. Today I would say the opposite ratio is closer to the truth. This is how I got there.

I have Heidegger and my notebook beside me. I am asking where all of this is heading, where artificial intelligence is taking us.
Seventy per cent. That is where the first AI output begins, even when you give it the full company context and the best examples from the past. We are talking about the kind of output that cannot be defined programmatically. It is more complex. Often it is creative work. On one repeated type of output I reached eighty per cent within a week. Every further percentage point is harder than the one before.

Four days in Catalonia. No computer, no AI, almost no social media. I bought this notebook so that I could write down what I would think about, and what I would come across and learn on the trip.

