計測済みの棚生産性
Productivity videos, and the minute each one starts paying off
- 水増しの中央値
- 47%
- 有用な部分の開始
- 1:04
- 典型的な尺
- 14 min
最終再計算 2026/9/16
Of every category we measure, this one has the highest padding share. That is worth sitting with for a second, given that the subject is how not to waste your time.
The reason is structural. A productivity video is usually built around one idea that can be stated in a sentence — batch similar work, protect a block in the morning, stop context-switching. A sentence is not a video, so the idea gets a story, a counter-example, a personal experiment, a recap, and a closing restatement. The idea is fine. The ratio is not.
This shelf is ordered by what survives that treatment: the share of runtime that adds something the previous minute did not. Videos that state a method and then demonstrate it on real work rank above videos that state a method and then restate it, and that ordering is the entire point of the page.
Each entry names the second the useful part starts, which in this category is often the single most valuable number on the row. A twenty-minute video whose method begins at 6:20 has not wasted your time — unless you watch it from the beginning.
-
01
To Understand the Fourier Transform, Start From Quantum Mechanics
0:0031:37- 密度
- 81
- 水増し
- 25%
- 有用な部分は
- 2:55
A dense, rigorous derivation that makes the Fourier transform and the uncertainty principle fall out naturally from quantum mechanics — excellent educational content with almost no filler.
-
02
Logarithmic nature of the brain 💡
0:0017:27- 密度
- 75
- 水増し
- 29%
- 有用な部分は
- 1:05
A rigorous, well-produced derivation of why the brain's firing rates and synaptic strengths are log-normal rather than normal — genuinely educational, with only a brief disclosed sponsor…
-
03
How Your Brain Organizes Information
0:0026:54- 密度
- 74
- 水増し
- 32%
- 有用な部分は
- 1:57
A dense, well-sourced primer on hippocampal cognitive maps — real depth on place/grid cells and latent spaces, with a short disclosed sponsor read at the end.
-
04
Who's Adam and What's He Optimizing? | Deep Dive into Optimizers for Machine Learning!
0:0023:20- 密度
- 74
- 水増し
- 31%
- 有用な部分は
- 1:19
A thorough, well-derived tour of optimizer math from SGD to Adam, backed by genuine benchmarks rather than hand-waving.
-
05
A Simple Way to Break a Bad Habit | Judson Brewer | TED
0:009:25- 密度
- 71
- 水増し
- 38%
- 有用な部分は
- 0:44
A well-evidenced, tightly delivered TED talk on using curiosity instead of willpower to break habits — genuinely useful and grounded in real research.
-
06
Why do we like Music? | Breakthrough Junior Challenge 2020
0:003:00- 密度
- 69
- 水増し
- 28%
- 有用な部分は
- 0:16
A remarkably dense 3-minute science explainer linking wave physics to dopamine and chills — genuinely worth the watch.
-
07
A Map of Social Space in Your Brain
0:0017:34- 密度
- 67
- 水増し
- 36%
- 有用な部分は
- 4:54
A dense, well-sourced walk through real research showing the hippocampus repurposes spatial mapping to build a literal map of social relationships.
-
08
Artem Kirsanov, Russia, Finalist, Asia Regional Champion: 2018 Breakthrough Junior Challenge
0:002:59- 密度
- 67
- 水増し
- 29%
- 有用な部分は
- 0:16
A remarkably dense, accurate 3-minute explainer of the molecular circadian clock mechanism — excellent for its format.
-
09
Inside the Mind of a Master Procrastinator | Tim Urban | TED
0:0014:04- 密度
- 56
- 水増し
- 43%
- 有用な部分は
- 4:01
A funny, self-deprecating TED talk that actually lands a real, still-useful insight about the two different kinds of procrastination.
-
10
Memory Consolidation: Time Machine of the Brain
0:0011:11- 密度
- 67
- 水増し
- 43%
- 有用な部分は
- 2:44
A dense, well-evidenced explainer of sleep's replay mechanism for memory, lightly taxed by an integrated sponsor read.
-
11
Interleaving vs Spaced repetition | Study hacks
0:008:02- 密度
- 77
- 水増し
- 36%
- 有用な部分は
- 0:42
A tightly argued, evidence-based explanation of why interleaving works — rare for going past 'just do this' into the underlying mechanism.
-
12
Mind mapping tutorial for students | Tips & Software
0:008:01- 密度
- 72
- 水増し
- 38%
- 有用な部分は
- 0:33
A tight, genuinely useful explainer on why and how to mind map, grounded in real cognitive reasoning with zero fluff or selling.
-
13
Understanding note-taking | Zettelkasten
0:0012:02- 密度
- 69
- 水増し
- 37%
- 有用な部分は
- 2:17
A clear, well-reasoned explainer of WHY Zettelkasten works — bottom-up structure, interlinking, and externalization — rather than another generic how-to guide.
-
14
The Science of Making & Breaking Habits | Huberman Lab Essentials
0:0036:16- 密度
- 74
- 水増し
- 28%
- 有用な部分は
- 0:15
A dense, well-structured Huberman Essentials episode that turns habit neuroscience into genuinely usable daily-scheduling tools.
-
15
Essentials: Tools to Boost Attention & Memory | Dr. Wendy Suzuki
0:0036:52- 密度
- 73
- 水増し
- 29%
- 有用な部分は
- 0:33
A dense, honestly-titled recap of real exercise/meditation science for memory and attention, light on filler beyond a couple of personal anecdotes.
-
16
How to Focus to Change Your Brain | Huberman Lab Essentials
0:0033:45- 密度
- 71
- 水増し
- 35%
- 有用な部分は
- 0:46
A dense, well-sourced explainer that turns real neuroscience into an actually usable focus protocol.
-
17
How To Reclaim Your Attention (and your life) - Dr. K
0:0011:31- 密度
- 71
- 水増し
- 32%
A dense, credible breakdown of how tech hijacks attention, weakened by a few unfalsifiable spiritual claims but strong on real psychological mechanism.
-
18
ADHD & How Anyone Can Improve Their Focus | Huberman Lab Essentials
0:0037:55- 密度
- 70
- 水増し
- 30%
- 有用な部分は
- 0:47
A dense, well-sourced explainer on ADHD neurobiology paired with genuinely actionable, research-backed focus techniques.
-
19
Can You Elaborate on Concentration Calisthenics?
0:002:47- 密度
- 73
- 水増し
- 33%
- 有用な部分は
- 0:32
A tight, causal explanation of why practicing boredom trains your brain for deep work — dense and fluff-free despite its brevity.
-
20
Study Skills: How to Take Cornell Notes
0:006:16- 密度
- 70
- 水増し
- 38%
- 有用な部分は
- 1:05
A tight, honest, genuinely useful explainer on Cornell notes with no fluff or agenda.
-
21
Why you procrastinate even when it feels bad
0:005:46- 密度
- 69
- 水増し
- 31%
- 有用な部分は
- 0:44
Sharp, science-grounded TED-Ed explainer that reframes procrastination as a fear response and ends with real, actionable fixes.
-
22
Did AI Just “Solve” Math? (Let’s Take a Closer Look)
0:0031:49- 密度
- 65
- 水増し
- 28%
- 有用な部分は
- 2:42
A sharp, well-sourced myth-check of OpenAI's math claim that actually teaches a durable framework for evaluating AI hype.
-
23
How to Stop Procrastination & Increase Motivation | Dr. Andrew Huberman
0:007:06- 密度
- 68
- 水増し
- 32%
A short, genuinely useful Huberman clip that explains a real mechanism and gives an actionable, low-risk technique for beating procrastination.
-
24
The Distracted Mind
0:001:39- 密度
- 73
- 水増し
- 34%
- 有用な部分は
- 0:18
A tight, science-backed 99-second PSA that concretely explains why multitasking behind the wheel is dangerous.
-
25
Why People with ADHD Procrastinate (And 4 Brain-Based Ways to Get Started)
0:008:05- 密度
- 69
- 水増し
- 36%
- 有用な部分は
- 0:34
A clear, well-organized explainer on the neuroscience behind ADHD procrastination with four genuinely usable coping techniques.
Gistil's own measurement. Not a YouTube rating, and not the channel's position. 順位は私たちのものですが、動画自体はそれぞれのチャンネルに属します。
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