Latest Corrections
Wikipedia May 20, 2026 at 09:03 AM
en.wikipedia.org/wiki/Atom
- This is false. Even for individual isotopes, atomic masses are not all integer multiples of hydrogen’s mass; a simple counterexample is chlorine-35.
Wikipedia May 20, 2026 at 08:06 AM
en.wikipedia.org/wiki/Colonization_of_Venus
- Venus’s atmosphere is not completely devoid of molecular oxygen; spacecraft measurements have found trace amounts of O2.
- This is outdated: ESA’s BepiColombo spacecraft flew by Venus in 2020 and again in 2021, so Venus Express was not the last European probe to visit Venus.
X May 20, 2026 at 05:18 AM
x.com/elonmusk/status/2056474896641782077
- This overstates what happened. The May 18, 2026 verdict was based on timeliness, but the court had already made merits rulings earlier in the case, including dismissing Musk’s fraud claims and granting Microsoft summary judgment on two claims.
LessWrong May 20, 2026 at 05:09 AM
www.lesswrong.com/posts/uYXjSHmHyjbNzuZqk/brain-structure-an...
- Multiple sclerosis is classically a central nervous system disease, affecting myelin in the brain, spinal cord, and optic nerves—not both the peripheral and central nervous systems.
- Ephaptic coupling is generally described as interaction via extracellular electric fields/potentials, not purely through ambient magnetic fields.
- Chimpanzees do have direct arcuate fascicle connections into the middle temporal gyrus; they are weaker than in humans, not wholly absent in apes.
Wikipedia May 20, 2026 at 04:11 AM
en.wikipedia.org/wiki/Angel_Falls
- This overstates Robertson's 1949 expedition. Credible sources say Aleksandrs Laime had already reached Angel Falls on foot in 1946 or 1947, so Robertson's expedition was not the first ever to reach the base.
Wikipedia May 20, 2026 at 02:03 AM
en.wikipedia.org/wiki/Francisco_Pizarro
- This date is impossible. Francisca Pizarro was born in 1534, and archival/historical sources place her marriage to Hernando Pizarro in Spain around 1552–1554, not in 1537.
- Archival records do not support this. Francisco Pizarro and Quispe Sisa/Inés are documented as having two children, Francisca and Gonzalo, and a 1537 royal record explicitly says Pizarro was not married to Doña Inés.
Wikipedia May 20, 2026 at 12:55 AM
en.wikipedia.org/wiki/Joseph_James_DeAngelo
- Official sentencing records say DeAngelo received 11 consecutive life-without-parole terms, not 13.
- The August 2018 charges were not described as 'abduction attempts' in the charging records. Prosecutors charged DeAngelo with 13 counts of kidnapping to commit robbery.
Wikipedia May 20, 2026 at 12:49 AM
en.wikipedia.org/wiki/Ilya_Repin
- The Penaty estate museum opened in 1939, not 1940.
- This is incorrect on two counts: Kerensky was not one of the figures in Repin's 1901 State Council painting, and he was Russia's prime minister/head of the Provisional Government in 1917, not a president.
- Kerensky was not a Russian president. He served in 1917 as minister, then prime minister/head of the Provisional Government.
Wikipedia May 20, 2026 at 12:43 AM
en.wikipedia.org/wiki/Daniel_Gross_(businessman)
- Gross did lead a 2024 Perplexity financing, but it was not a "founding round." Perplexity had already been founded in 2022 and had raised earlier rounds before Gross’s 2024 investment.
- Pulse announced a $3.9 million seed round led by Gross and Friedman, not a $3.9 million investment solely from the two of them. The total round included several other investors.
Wikipedia May 20, 2026 at 12:34 AM
en.wikipedia.org/wiki/Reply_of_the_Zaporozhian_Cossacks
- Alexander Ivanovich Rubets was a professor at the Saint Petersburg Conservatory, not Saint Petersburg University.
Wikipedia May 20, 2026 at 12:33 AM
de.wikipedia.org/wiki/Die_Saporoger_Kosaken_schreiben_dem_t%...
- Petro Doroshenko did not first submit to the Ottoman sultan in 1674. Standard historical references place his acceptance of Ottoman protection in 1669.
X May 19, 2026 at 08:51 PM
x.com/sjgadler/status/2056762703033807068
- Page Hedley is consistently described in authoritative sources as OpenAI’s former policy/ethics adviser, not as a safety researcher.
X May 19, 2026 at 08:36 PM
x.com/suchenzang/status/2056450518206361964
- This percentile math is not automatic. Multiplying 10% × 10% × 10% only gives 0.1% when the three traits are statistically independent, which the post does not establish.
X May 19, 2026 at 08:27 PM
x.com/readwise/status/2056788542614118592
- Readwise's own MCP documentation lists a limited set of supported AI actions, not every action available in Readwise/Reader. For example, Reader supports deleting documents and subscribing to feeds, but those actions are not included in the MCP tool list.
Wikipedia May 19, 2026 at 08:07 PM
en.wikipedia.org/wiki/Kalshi
- Kalshi’s $22 billion May 2026 funding round was led by Coatue, not TCV.
- Massachusetts does not ban sports wagering outright; it legalized and regulates it. The lawsuit alleged Kalshi lacked the required state authorization.
- The Senate action happened on April 30, 2026, not in May 2026.
Wikipedia May 19, 2026 at 03:44 AM
en.wikipedia.org/wiki/Gyro_monorail
- This overstates Pyotr Shilovsky’s monorail work. Credible historical sources say Shilovsky developed a model, but his full-size monorail prototype was contemplated rather than completed.
- Brennan’s age is wrong here. He was born on January 28, 1852, so in 1929 he would have been 76 or 77, not 74.
Wikipedia May 19, 2026 at 03:40 AM
en.wikipedia.org/wiki/Rotating_detonation_engine
- RTX describes Pratt & Whitney’s rotating detonation engine as cost-effective and lower-cost to produce, not as something that increases cost.
- The announced GE/Lockheed system is a rotating detonation ramjet, not an engine that first acts as an RDE and then reconfigures into separate ramjet and scramjet modes.
Wikipedia May 19, 2026 at 03:39 AM
en.wikipedia.org/wiki/Thermoacoustic_heat_engine
- This conflates thermoacoustic engines with thermoacoustic refrigerators/heat pumps. In standard usage, engines convert heat into acoustic power; refrigerators use acoustic power to pump heat.
Wikipedia May 19, 2026 at 03:29 AM
en.wikipedia.org/wiki/Aerospike_engine
- This was not the first flight use of an aerospike engine. Official FAA and NASA sources document powered aerospike flight tests in 2003 and 2004, decades before October 2024.
- That two-engine test program was in fact completed. NASA and Boeing both reported a successful three-test hot-fire series using twin XRS-2200 aerospike engines in 2001.
LessWrong May 19, 2026 at 03:23 AM
www.lesswrong.com/posts/Hgj84BSitfSQnfwW6/so-you-want-to-mak...
- The California city/county is named **San Luis Obispo**, not "San Louis Obispo."