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Notas de campode uma biblioteca medida

O que 3,487 vídeos medidos nos ensinaram

Avaliamos vídeos do YouTube pelo quanto da duração realmente entrega algo. Estes são os padrões que apareceram quando já havia vídeos suficientes para contar.

Mediana de enrolação 40% início mediano da parte útil 1:00 recalculado 4 Sep 2026

  1. Relatório de dados26 de ago. de 20265 min

    How long is a lesson, really: runtime measured across twenty subjects

    Median runtime runs from 18:16 in history to 9:30 in productivity, nearly two to one. It has almost no relationship to which subjects score highest on value.

  2. Relatório de dados26 de ago. de 20265 min

    Do YouTube titles tell the truth? Honesty measured across twenty subjects

    Average title honesty is 81 out of 100, from 87 in science down to 73 in travel. The same subjects that oversell titles also carry the most padding.

  3. Relatório de dados25 de ago. de 20267 min

    The useful part of the median measured video starts at 1:02

    Across 3,243 measured videos the useful part starts at 1:02, and one in ten makes you wait past 3:47. Here is how that splits across twenty subjects.

  4. Relatório de dados25 de ago. de 20267 min

    We measured the padding in 3,002 videos. The number has not moved.

    A second padding census, on 3,002 measured videos. The median is still 40%, the library has grown by three quarters, and the distribution barely moved.

  5. Relatório de dados25 de ago. de 20267 min

    We measured 3,243 YouTube videos. One hundred of them were advanced.

    One hundred of 3,243 measured videos were pitched above intermediate. Here is which subjects have none at all, and the one signal that finds the rest.

  6. Relatório de dados25 de ago. de 20267 min

    One in five measured videos was not worth the time it asked for

    659 of 3,243 measured videos were not worth their runtime. The share runs from 5% in science to 64% in travel, and the title predicts it before you click.

  7. Artigo20 de ago. de 20264 min

    How to tell if a YouTube video is worth watching before you press play

    Six signals you can read from the page in about twenty seconds, ranked by how well they actually predict whether the video delivers.

  8. Artigo19 de ago. de 20265 min

    Why YouTube videos feel three times longer than they need to be

    We measured the padding in nearly two thousand videos. It is not the sponsor segment, and it is not where most people think it is.

  9. Artigo18 de ago. de 20265 min

    What "value density" means, and how we measure it

    The three numbers Gistil puts on a video, what each one is actually claiming, and the places where they do not apply.

  10. Relatório de dados17 de ago. de 20267 min

    We measured 1,893 YouTube videos. This is how much of them was filler.

    A padding census across fifteen categories: the median video is 40% structure, and the long ones are the least padded, not the most.