
TOK Essay Title #5 (May 2026)
To what extent do you agree with the claim that "all things are numbers" (Pythagoras)? Answer with reference to the arts and the human sciences.
This is definitely the most interesting and potentially most fun Theory of Knowledge essay title for May 2026. It's really interesting that you are not looking at Maths, as well. This fact will undoubtedly make this title the most popular for the year. If you want extra help, tutoring, or proofreading, click here to have me read your essay!
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Evidence & Examples Used in My Video:
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Guides for other TOK Essay Titles:
My Notes:
The Arts
Examples, Evidence & Research
Human Sciences Examples, Evidence & Research
Do Numbers Exist
Watch this video, which goes into a discussion that is really important for TOK: what, exactly, are numbers. If numbers are actual things that exist, could they be like atoms and molecules? This will help you understand the extent to which Pythagoras was speaking in hyperbole…or not.
Pythagoras and the Pythagoreans
These are two different things that we can look at. The Pythagoreans seem to me like a math cult. But I could be wrong. Read this encyclopedia article to explore how much these people thought numbers were in all things. To fully understand TOK Essay Title #5 you want to see all of the different ways that you could interpret the title.
The Arts
A Direct Disagreement with Pythagoras and Title #5
This resource is pretty much required viewing. This article, called Pythagoras Was Wrong… directly addresses claims by the mathematician and demonstrates why music cannot be made up by numbers (which contrasts a lot of claims below). Culture and musical genres across the world demonstrate that music and our reactions to it may be less universal than what was once thought. Here’s a YouTube video and the actual freaking research article!!!
Can We Measure the Arts with Numbers?
This is a classic scene from Dead Poet’s Society that came to mind, though it may not be a perfect example to have as the main evidence for a paragraph. But there are many ways that we might try to quantify arts and artistic impression. What rules do we use to measure and quantify the Arts, and who gets to make these rules? Why?
Where Numbers Appear in the Arts
This is going to be a classic example, mostly because many people will be able to mention this without researching it. The Golden Ratio appears throughout artwork, as does the rule of thirds. Why do we find these to be so pleasing, and why are they able to cross genres, works, and last seemingly forever? This article explains the difference between the Golden Ratio and the Fibonacci Sequence, which will make you sound smarter.
How Numbers Appear in Music
This is a really cool online tool that lets you explore chord progressions in music and see how often they appear. Why are certain numerical pattens and progressions so popular? Why are they used to convey a certain feeling?
The Cirlce of Fifths is the Backbone of Music
If you can understand something a bit complex in music theory, the circle of fifths is pretty wild. This is the best example of how one could argue that the arts, in this case the discipline of music, demonstrates that numbers are in all things (or that music is numbers). Here’s a cool video that demonstrates it more.
Paradigm-Shifting Artworks Demonstrate Art isn’t Numbers
While it’s important to not throw common answers into your paragraph with no research, ground-breaking works of art that invented new genres really can’t be quantified or explained with numbers. Duchamp’s Fountain, Picasso’s Guernica, and Banksy’s Girl with the Balloon will all be overused examples of creating new genres of art that didn’t exist previously. Notice that I didn’t link to these. But what about the first motion picture? The first photograph, actually? Rap and Rock & Roll were both genres invented through other genres, but how could this be numerical?
Songs that Defy [Numerical] Explanation
Though songs, as said earlier, can be explained through numbers, can their meaning be expressed numerically? Look at this playlist of sad songs that sound happy. How could this be numerical?
How Emotion and the Arts Could Be Explained in Numbers
Scientists Ekman and Friesen believed that we could chart and classify all human expression/emotion. This could be tied into the Arts, as a way to argue that we can use numbers to explain the meaning behind a work of art. If all human emotion can be classified (this is debatable), then can even the intangible things be numbers?
Human Sciences
Numeric Classification in Economics and Business
Amazon famously tried to use AI to scan resumes in the hiring process, which resulted in massive amounts of sexism in the hiring process. This has now been scrapped…but not really. It’s still happening today, and I experienced it!
Qualitative Data Can't Be Made by Numbers
The Human Sciences focuses on Qualitative Data, which demonstrates and reports things that cannot be explained/expressed with numbers, and show that numbers can’t be in all things. False Memories are an example of a study that goes beyond numbers – it shows how humans are complex and often irrational. This is not numerical, as numbers couldn’t explain why people are so confident when they are wrong.
Quantizing Could be the Third Kind of Data in Human Sciences
This article and study uses ChatGPT to turn qualitative data into something a bit more numerical. This could disagree with everything else that you study. While they are able to succeed in some things, the authors do identify that human nuance and interpretation are still required.
Propaganda and Persuasion Cannot be Numbers
Similar to the previous example, when governments use propaganda to spread and promote disinformation, this demonstrates the need for qualitative, not quantitative, study. Here is one example that I found in Russia, one in China, and one globally. Note how these reports still use numbers in their report. Could this demonstrate both sides?
Can ChatGPT Perform Its Own Experiments?
A study at Cornell recently tried to use ChatGPT to replicate famous studies. If this is successful, it could demonstrate that models and numbers can encapsulate human behavior.
How Big Data Can Quantify Human Behavior
This example demonstrates a way that human scientists are trying to use many different kinds of data to collaborate and explain and predict human behavior. But, again, the authors don’t say that this is a magic bullet. So, numbers are in many things, but not all things.
How to Properly Treat Qualitative Data
This article directly addresses trying to find numbers in all things, and can collaborate with many of the examples here that promote the use of qualitative data in the human sciences. As we get more strength from AI, which is number-based, is it best to use that to try and find numbers in humanity?