Ctenophores are considered “immortal jellyfish:” they have the Benjamin Button–like ability to reverse their development in the face of prolonged starvation or injury.
The latest study on CTE in football players “quantifies but does not reveal a problem,” writes Emily Harrison, a historian who studies brain injury in football.
DuckDB 2.0 rewrote recursive CTEs.
Walking a 20,000-commit git history: 1.8 to 16 s on 1.5.5, 0.10 s on 2.0, every run.
1.5: re-read the whole table every round.
2.0: read once, build a lookup, touch only the frontier's rows.
Deep parent/child chains are where it shows.