Voice over IP Updated 2025-07-16
Simplex Updated 2025-07-16
The name does not imply regular by default. For regular ones, you should say "regular polytope".
Vacuum Updated 2025-07-16
PostgreSQL serialization failure Updated 2025-07-16
When using SQL REPEATABLE READ isolation level and SQL SERIALIZABLE isolation level, concurrent transactions may fail with a serialization failure, and then you might need to retry them. You server code or your ORM must always account for that.
Related questions:
- stackoverflow.com/questions/7705273/what-are-the-conditions-for-encountering-a-serialization-failure
- stackoverflow.com/questions/59351109/error-could-not-serialize-access-due-to-concurrent-update
- stackoverflow.com/questions/50797097/postgres-could-not-serialize-access-due-to-concurrent-update/51932824
Test data 14 Updated 2025-07-16
Training machine learning on copyrighted data Updated 2025-07-16
Ransomware Updated 2025-07-16
Polykarp Kusch Updated 2025-07-16
Transgenerational epigenetic inheritance Updated 2025-07-16
Turing machine Updated 2025-07-16
The model is extremely simple, but has been proven to be able to solve all the problems that any reasonable computer model can solve, thus its adoption as the "default model".
The smallest known Turing machine that cannot be proven to halt or not as of 2019 is 7,918-states: www.scottaaronson.com/blog/?p=2725. Shtetl-Optimized by Scott Aaronson is just the best website.
A bunch of non-reasonable-looking computers have also been proven to be Turing complete for fun, e.g. Magic: The Gathering.
Point group Updated 2025-07-16
PostGIS Updated 2025-07-16
The third part module, which clutters up any serches you make for the built-in one.
Q&A software Updated 2025-07-16
Test data 17 Updated 2025-07-16
The Fox and the Cat (fable) Updated 2025-07-16
Theft Updated 2025-07-16
Political party Updated 2025-07-16
The Hedgehog and the Fox by Isaiah Berlin (1953) Updated 2025-07-16
Epoch (astronomy) Updated 2025-07-16
New Religious Movement Updated 2025-07-16
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