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 →

65/10015:01The Rainiest Place On EarthB2-C2 · ~14,000 words · fastVeritasium65/10027:18This game theory problem will change the way you see the worldB2-C1 · ~7,000 words · fastVeritasium65/10034:40Video projectors used to be ridiculously coolB2-C2 · ~8,000 words · fastTechnology Connections65/10017:40The decorative lamp that's built wrong on purposeC1-C2 · ~11,000 words · fastTechnology Connections65/10011:24What Sitting All Day Does to Your Brain and Body | Keith Diaz | TEDB1-C1 · ~5,000 words · fastTED65/10015:15The Hidden Engineering Behind the Falkirk WheelB2-C2 · ~10,000 words · fastPractical Engineering65/10018:28The Grid That Doubles the Strength of the GroundC1-C2 · ~10,000 words · fastPractical Engineering65/10031:54Exposing The Flaw In Our Phone SystemB2-C2 · ~6,000 words · fastVeritasium65/10019:32Sexuality Professor Answers Dating Questions | Tech Support | WIREDB1-C1 · ~5,000 words · fastWIRED65/1005:33Travel to Costa Rica & Experience Pura Vida | National GeographicB2-C2 · ~12,000 words · fastNational Geographic65/10033:39The Man Who Took LSD and Changed The WorldB2-C2 · ~14,000 words · fastVeritasium66/10020:05How Nebula WorksC1-C2 · ~11,000 words · fastReal Engineering66/10027:10What They (Probably) Don't Teach You About Rainbows At SchoolB2-C2 · ~8,000 words · fastVeritasium66/10022:22The Most Important Material Ever MadeC1-C2 · ~10,000 words · fastVeritasium66/10037:15Why it's not possible to synchronize turn signals (but also absolutely is)B2-C2 · ~8,000 words · fastTechnology Connections66/10017:36How do vinyl records hold stereo sound?C1-C2 · ~13,000 words · fastTechnology Connections66/10027:28This cassette player is built into an 8-track cartridgeC1-C2 · ~10,000 words · fastTechnology Connections66/10033:44Why It Was Almost Impossible to Make the Blue LEDC1-C2 · ~14,000 words · fastVeritasium66/10026:48Senegal Food Tour: 24 Hours of Unforgettable Cuisine | Epic Food Journeys with Mark Wiens | Nat GeoB2-C2 · ~7,000 words · fastNational Geographic66/1001:02:18Old HVAC industry practices are holding us back and costing us money. But we can fix it.B2-C2 · ~8,000 words · fastTechnology Connections66/10022:31What's Under Your Feet in New York City?C1-C2 · ~10,000 words · fastPractical Engineering66/1005:29How are microchips made? - George Zaidan and Sajan SainiC1-C2 · ~17,000 words · fastTED-Ed66/10029:20Desiccant dehumidifiers are fascinating... but not for everyoneC1-C2 · ~12,000 words · fastTechnology Connections66/10016:46AUTOThe Problem with Wind EnergyC1-C2 · ~13,000 words · fastReal Engineering

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 →