# ショート動画は、なぜ満たされない？ #194

- Show: ゆる哲学ラジオ
- Published: 2026-10-10
- Canonical: https://podc.club/en/episode/1697687442_d99ac69f57f7.html
- Audio: https://api.robotstart.jp/api/for-media/v1/articles/372c0491/permanent/with-advertise/podcast/8bab7d34e65c8d58e7248282195303ab.mp3
- Source: Edited from a machine transcript of the first 30 minutes of the episode. Not an official summary.

Why does scrolling through short videos never feel satisfying? This episode of Yuru Tetsugaku Radio (ゆる哲学ラジオ) tackles that question through Kokubun Koichiro's (國分功一郎) book Hima to Taikutsu no Rinrigaku (暇と退屈の倫理学, Ethics of Idleness and Boredom), opening with the invented slang term 'dopagaki' — a portmanteau for kids addicted to dopamine hits. The discussion spans the philosophical difference between idleness and boredom, how leisure was captured by industry in the modern era, and why human beings are biologically destined to get bored.

## What this episode answers

### Why can't short videos ever satisfy you?

Short videos are watched to kill time rather than for any intrinsic purpose, so consumption continues without being fulfilled and boredom never resolves — just like the honeybee experiment in the book, where a bee with a hole in its abdomen drinks nectar endlessly because its tank can never fill up.

### What is the difference between 'idleness' (hima) and 'boredom' (taikutsu)?

Idleness is simply having nothing to do, while boredom is the subjective feeling that this empty time is tedious; the two are distinct, and you can be bored even when you are busy — as illustrated by a 200-person standing cocktail party full of card-exchanging bustle, or the period when co-host Urashita spent nine months as an IT engineer just to fund his cello playing, busy with work yet feeling no spark.

### Why are humans instinctively prone to boredom?

Humans are the only creatures capable of freely moving between different Umwelten (subjective perceptual worlds), and that very ability makes it impossible to stay within one Umwelt for long; Pascal noted that 'all of humanity's problems stem from man's inability to sit quietly in a room alone,' and the book argues that boredom is therefore an instinct of the species.

### How did 'leisure' emerge in modern society and get absorbed by capitalism?

When modern labor patterns changed and days off appeared, workers had no idea how to rest, and the leisure industry stepped in; Ford gave workers holidays and higher wages specifically so they could buy his cars and advertise them through road trips, meaning every concession flowed back to company profit — in consumer society, supply precedes demand and desire itself is manufactured by industry.

### How can you reach a state of having free time without feeling bored?

The book suggests aiming for a state of having free time while feeling fulfilled — being idle without being bored; Urashita's hours absorbed in cello practice are cited as an approximation, but readers are directed to the book itself for a concrete prescription.

## Article

## What Is a 'Dopagaki'?

The episode opens with the neologism *dopagaki* (DPGK) — a compressed coinage meaning roughly 'a kid addicted to dopamine stimulation.' It describes anyone who cannot feel satisfied unless stimulation arrives at short, relentless intervals. The hosts illustrate the extreme end with a witnessed episode: a man on a train running two tablets simultaneously, playing a game on the top screen while streaming YouTube on the bottom. Co-host Urashita (浦下くん) is not spared — he admits that any spare moment goes to cello vibrato practice or playing a mobile game while a video plays in the background, and he is promptly declared a dopagaki.

## Idleness and Boredom Are Not the Same Thing

The episode's anchor text is Kokubun Koichiro's *Hima to Taikutsu no Rinrigaku*. The book draws a sharp line between *hima* (idleness — simply having no obligations) and *taikutsu* (boredom — the subjective experience of finding that emptiness dull). You can be bored even when you are not idle. Two examples illustrate this: a standing party of 200 people where you spend the whole evening exchanging business cards and reading the room, busy the entire time yet somehow bored; and Urashita's nine months working as an engineer solely to finance his cello playing, during which he had plenty of work but no inner momentum.

The core problem with short videos lives here. The book's honeybee experiment is emblematic: a bee whose abdomen has been punctured drinks nectar continuously because whatever it consumes flows straight out — the tank never fills, so it never stops. Endlessly swiping through short videos is structurally identical. The consumption continues, the boredom never lifts, and the dead-eyed expression of someone mid-scroll is the outward sign.

## Boredom Is a Human Instinct — Pascal and the Umwelt

Pascal wrote that 'all of humanity's problems stem from man's inability to sit quietly in a room alone.' The book unpacks this through a rabbit-hunt analogy: offer someone who is about to go rabbit-hunting a free rabbit, and they will not be pleased. People go rabbit-hunting not because they want rabbit, but because they cannot endure boredom.

The book then introduces the concept of the *Umwelt* — the species-specific perceptual world each organism inhabits, each with its own subjective flow of time. Fish and flies live in far finer time-slices than humans do, so a human's movements appear to them in slow motion. A film reel is a sequence of still frames separated by black screens, but humans cannot perceive the gaps; a fish, the hosts suggest, would see it as a jerky slideshow. Crucially, humans alone can imagine and slip into the Umwelten of other creatures. That capacity is precisely what generates boredom: once you can conceive of other ways of experiencing the world, remaining locked inside a single one becomes intolerable.

## The Birth of Leisure and Its Capture by Capital

Idleness used to be a status symbol. The leisure class — those who could live without working — filled their hima with polo and hunting. Peasants, by contrast, worked without pause and handed over most of what they earned as tribute; free time barely existed for them.

When modern labor patterns shifted and the concept of days off emerged, workers found themselves with free time they did not know how to use. The leisure industry noticed. Amusement parks, department stores, world's fairs — a structure took shape in which the time and money workers earned were siphoned straight back into industry.

Ford is the exemplary case. Ford gave his workers holidays and raised their wages, but the purpose was to put them in a position to buy his own cars — and when they drove those cars on trips, the cars advertised themselves. The holidays and the raises were both engineered to return value to the company. In consumer society, supply exists before demand, and desire is manufactured by industry. When a TikTok algorithm serves you a video of churrasco (シュラスコ) and you suddenly crave it, that craving was created for you. The dopagaki, then, is the terminal product of consumer society and the information society fusing: not a moral failure, but an outcome that was always going to happen.

## The Goal: Idle, but Not Bored

The four possible combinations of idleness and boredom are laid out: ① idle and bored, ② idle but not bored, ③ busy but bored, ④ busy and not bored. Urashita playing cello sits in ④ — absorbed, never bored. Mindlessly swiping short videos is ① without exit. The root of the problem is not that short videos are bad, but that the activity is inverted: instead of spending time *in order to watch*, you watch *in order to spend time*. Means and ends have switched places.

The ideal is ②: time to spare, and a heart that is full. 'Workers, reclaim your idleness' is introduced as the book's rallying cry. The hosts leave the specific prescription to the book itself, closing with the invitation: 'Take some hima — and read it.'

## Takeaways

- Short videos can't satisfy you because you're watching them to fill time rather than for any real purpose, so — like the honeybee with a hole in its abdomen — consumption loops endlessly and boredom never resolves.
- Idleness and boredom are distinct: humans are instinctively prone to boredom because, uniquely among living things, they can imagine and move between different Umwelten and therefore cannot tolerate staying in one perceptual world indefinitely.
- Modern leisure was captured by industry from the start — Ford's holidays and pay raises were designed to sell his own cars — making the dopagaki not a personal failing but the inevitable product of consumer society merged with the information age.