| 2019-09-02 | What useful fundamental physics are we missing? | I wrongly said that neutrino oscillations have no practical application | $2 | Lee Pavlevich |
| 2019-11-17 | NA | Mistake: Trusting 'Why We Sleep' too much. This mistake is hard to phrase because I wasn't committed to any object level claim, with the possible exception of 'every animal sleeps' | NA | Alexey Guzey's review |
| 2019-12-01 | On the causal powers of mormonism | Various mistakes related to incomplete sources and a paper I should have cited on suicide rates for LDS church members that I did not | $14 | Personal email (Alison Hugh) |
| 2020-02-25- | The Longevity FAQ | Various mistakes around my description of the early history of C. Elegans research + other things outlined in the changelogs there. The actual rate I would have paid is less than $60 but I decided to make a special exception. The money was donated to SENS. | $60* | Laura Deming, personal email |
| 2020-04-15 | Progress in semiconductors | I failed to appreciate the important of wire delay, overplayed the role of the memory bottleneck. | $24 | Andrew Clough, personal email |