Comprehensible input in English

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The number on each thumbnail is its difficulty score out of 100: mostly speaking pace, partly vocabulary load. How it is measured →

48/1005:25The physics behind Einstein’s most famous equation - Lindsay DeMarchi and Fabio PacucciB2-C2 · ~9,000 words · mediumTED-Ed48/1006:03No one really knows what a tree is - Max G. LevyC1-C2 · ~20,000 words · mediumTED-Ed48/1005:51Why is Alzheimer’s disease so difficult to treat? - Krishna SudhirC1-C2 · ~13,000 words · mediumTED-Ed48/1005:14Do imaginary friends make you smarter?B2-C1 · ~10,000 words · mediumTED-Ed48/1007:50Advanced English Slang: "Good Call" vs. "Good Shout" | Learn Native English Phrases!A2-B1 · ~3,000 words · mediumLearn English with Papa Teach Me48/1008:15English Shopping Phrases You MUST Know! | Speak Fluently When Buying ClothesA2-B1 · ~3,000 words · mediumLearn English with Papa Teach Me48/1005:48The myth of Dionysus’ drunken revenge - Iseult GillespieC1-C2 · ~11,000 words · mediumTED-Ed49/1006:14Did a civilisation exist on Earth before humans? ⏲️ 6 Minute EnglishC1-C2 · ~9,000 words · mediumBBC Learning English49/1009:58What Sex, Soap and Alcohol Taught Me About Making an Impact | Myriam Sidibe | TEDB2-C2 · ~7,000 words · mediumTED49/1009:48AUTOMaking REAL Polish PLACKI ZIEMNIACZANE! Show Me Your Food!B1-B2 · ~3,000 words · mediumLearn English with Papa Teach Me49/1005:46The myth of MedusaC1-C2 · ~13,000 words · mediumTED-Ed49/1005:34How to find hidden clues at crime scenes - Theodore E. YeshionB2-C2 · ~8,000 words · mediumTED-Ed49/1005:19The surprising way we can cool the planet - Elise CuttsC1-C2 · ~14,000 words · mediumTED-Ed49/1008:11Why Does Tom Holland Speak Like That?B1-B2 · ~5,000 words · mediumLearn English with Papa Teach Me49/1006:14Should we cycle more? ⏲️ 6 Minute EnglishB1-C2 · ~6,000 words · mediumBBC Learning English49/1008:06Hiroshima: 80 years since atomic bomb: BBC Learning English from the NewsB1-C2 · ~6,000 words · mediumBBC Learning English49/1009:01They Were WRONG!...(They THOUGHT They Knew How to Say this Word)B1-B2 · ~6,000 words · mediumRachel's English49/1005:33What’s the best way to treat the common cold?C1-C2 · ~18,000 words · mediumTED-Ed49/1006:15The joys of writing lists ⏲️ 6 Minute EnglishB2-C2 · ~7,000 words · mediumBBC Learning English50/1005:18How a broken heart affects your body - Roni ShanoadaC1-C2 · ~13,000 words · mediumTED-Ed50/1007:18Huge power cuts in Spain and Portugal: BBC Learning English from the NewsB2-C2 · ~9,000 words · mediumBBC Learning English50/1006:51A Spicy Take On Parenting, Happiness and Sex | Negin Farsad | TEDB1-C1 · ~5,000 words · mediumTED50/1008:03Historic jewels stolen from Louvre: BBC Learning English from the NewsB2-C1 · ~7,000 words · mediumBBC Learning English50/1006:13How reading shapes your brain ⏲️ 6 Minute EnglishB2-C2 · ~6,000 words · mediumBBC Learning English

Which English channel to start with

Ranked by median difficulty, easiest first. The bar is a range, not a label — a channel typically spans a wide stretch of the scale, so one level would be false for its own hardest videos.

3 of these 4 channels carry the same vocabulary band (B1-B2), and their scores still run from 0 to 86. That gap is pace: what separates the easiest of these channels from the hardest is how fast people talk, not which words they use. How that is measured →