Fact & evidence ledger
What the channel told viewers as fact: every sincere fact claim, with the figures as said, what they measure, when they apply, and where they come from. Claims made as a joke or in character are set aside.
- 7604 sincere fact claims (501 more fact-shaped bits are excluded); 4028 carry 5858 figures.
- 334 claims name an outside source for a figure; 2196 of the 4028 claims with figures give no as-of date. Figures by source: 449 named, 201 the speaker's own count or experience, 5208 none.
- As-of dates for the 5858 figures: 2629 as said, 55 relative ("last year", "the past decade") resolved against the video's date, and 3174 with no date said, shown as of the video's date (the date said in the video, else the upload date) and marked implied.
- Context: 4957 of the 5858 figures say who they count or where they apply (3601 name a population, shown as for …; 3362 a place, shown as in …). A figure without them applies to whatever the claim itself names; recorded context is what was said or clear from the passage.
- Checks made while reading: 17 speaker errors, 145 doubtful, 11 verified, 5685 unchecked. No outside fact-check has been run, so a figure may be correct, contested or out of date.
By year
Per video = sincere fact claims per video uploaded that year: how much of the channel was teaching facts.
| year | claims | per video | with figures | source named | hedged | flagged | |
|---|---|---|---|---|---|---|---|
| 2007 | 159 | 0.6 | 90 | 23 | 18 | 13 | read 2007 |
| 2008 | 91 | 0.7 | 47 | 6 | 9 | 2 | read 2008 |
| 2009 | 228 | 1.2 | 140 | 14 | 24 | 12 | read 2009 |
| 2010 | 341 | 2.2 | 186 | 19 | 24 | 9 | read 2010 |
| 2011 | 377 | 2.4 | 197 | 13 | 34 | 6 | read 2011 |
| 2012 | 255 | 2.3 | 151 | 13 | 28 | 12 | read 2012 |
| 2013 | 319 | 3.0 | 179 | 21 | 24 | 11 | read 2013 |
| 2014 | 392 | 3.4 | 213 | 24 | 30 | 13 | read 2014 |
| 2015 | 369 | 3.2 | 235 | 19 | 29 | 16 | read 2015 |
| 2016 | 462 | 4.1 | 275 | 51 | 20 | 10 | read 2016 |
| 2017 | 452 | 4.0 | 250 | 9 | 58 | 6 | read 2017 |
| 2018 | 379 | 3.5 | 192 | 9 | 34 | 4 | read 2018 |
| 2019 | 433 | 3.9 | 178 | 9 | 38 | 2 | read 2019 |
| 2020 | 365 | 3.4 | 160 | 8 | 32 | 2 | read 2020 |
| 2021 | 298 | 2.8 | 124 | 11 | 20 | 1 | read 2021 |
| 2022 | 394 | 3.6 | 242 | 14 | 25 | 7 | read 2022 |
| 2023 | 550 | 5.1 | 238 | 13 | 46 | 7 | read 2023 |
| 2024 | 648 | 5.7 | 337 | 24 | 50 | 5 | read 2024 |
| 2025 | 558 | 5.2 | 304 | 24 | 34 | 10 | read 2025 |
| 2026 | 534 | 5.6 | 290 | 10 | 60 | 2 | read 2026 |
By topic
Topic = the primary domain of the video the claim is in.
| topic | claims | with figures | source named | most in |
|---|---|---|---|---|
| Science & nature | 1462 | 617 | 47 | 2024 (170) |
| Global development | 1113 | 772 | 63 | 2026 (162) |
| US politics & society | 1066 | 590 | 65 | 2016 (248) |
| History & curiosities | 719 | 329 | 18 | 2010 (87) |
| Internet & YouTube | 498 | 260 | 24 | 2024 (113) |
| Health | 421 | 159 | 6 | 2026 (97) |
| World affairs | 398 | 227 | 11 | 2009 (60) |
| Books & writing | 287 | 153 | 19 | 2025 (41) |
| Nerdfighteria | 270 | 142 | 22 | 2007 (32) |
| Philosophy & meaning | 242 | 130 | 7 | 2020 (43) |
| Economics | 222 | 135 | 12 | 2011 (44) |
| Sports | 216 | 145 | 2 | 2024 (39) |
| Personal life | 198 | 94 | 13 | 2023 (35) |
| Everyday life | 179 | 86 | 11 | 2020 (22) |
| Projects | 163 | 114 | 8 | 2025 (29) |
| Pop culture | 150 | 75 | 6 | 2018 (32) |
More
- Figures that come back — 32 measures said more than once, with each value and date.
- Where the figures come from — 253 named sources, e.g. Bill Gates, Proof News, Ted Cruz tax plan, World Health Organization, one study.
- Flagged figures — doubtful figures and speaker errors noted while reading.
- Fact-shaped bits — 501 joke or in-character "facts" kept out of the ledger.
- By year: 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026