The barber shop pole illusion explained with math

This is a well known optical illusion in which rotation appears to be vertical motion. There are several aspects of the barber pole design which make the illusion more effective, including having multiple stripes, making the stripes different colors, and using rotation. We will strip these things away in order to see what is happening…

Which side of the quotation mark does it go on?

I’m not a prescriptivist, I swear. As someone who is math-oriented (and maybe has some neurodivergent features), I like formal rules. I enjoy treating English grammar like a math problem; and, due to the circumstances of my upbringing, I am highly proficient at “standard” English. When I was younger I understood this to be a…

The conspiracy theory that revolves around wordplay

So-called “sovereign citizens” make up a collection of people with vaguely similar beliefs about government and the law. I say so-called not to deride people for calling themselves that, but rather because they often do not call themselves that. Instead, it has become a label that people in the mainstream use to describe individuals with…

Sympathy for the scammer

Recently, I’ve been watching YouTube videos on channels like Scammer Payback and Scambaiter. The idea is that a person pretends to fall for a scam, then uses the opportunity to hack into the scammer’s computer or even just make the scammer angry and waste their time. Refund scams One common type of scam goes like…

What this blog is and why it is like how it is

“Thoughts on mind” is a very literal title. This blog consists of anything I happen to be thinking about, hence the diverse range of topics and lack of cohesion. I like explaining things, so a lot of posts are my explanations of things I’ve learned. This isn’t really meant to be authoritative. I mostly write…

Is ice a rock?

I was asked this question recently, and my initial answer was “I don’t think so.” To investigate deeper, we need to figure out what a rock is: So it looks like we need to figure out what a mineral is next: Ice certainly seems to fit these definitions, such that a piece of ice could…

Does AI image generation have a real world use case?

Since 2022 and the release of generative AI like Stable Diffusion, AI-generated images have been a novelty above all else. As some have pointed out online, modern AI seems at times like a solution in search of a problem. Now, a couple years into this AI boom (or bubble), some patterns of usage have emerged….

Pedagogy recapitulates history (sort of)

Because of the way mathematical ideas build on other mathematical ideas, the order in which these ideas were discovered/invented is often the same as the order in which they are taught. All humans typically start where humanity (is thought to have) started, with counting objects and identifying simple shapes. From there, we begin making calculations….

Stories in the history of written language (part 7)

The origins of literature To define narrative formally is to accept, perhaps dangerously, the idea or the feeling that the origins of narrative are self-evident, that nothing is more natural than to tell a story or to arrange a group of actions into a myth, a short story, an epic, a novel. (Genette and Levonas…

Fictitious reality in live action and animation

What’s the difference between live action film and animation? Well, a lot of things. A difference I’ve been thinking about lately is how each relates to reality. Live action is meant to depict a fictitious reality but actually presents a true reality (the performance) out of context (the film’s production). There is a suspension of…