With each level, 2019 QCVC readers are more likely to reach the next

It’s not a terribly surprising phenomenon, but with each level a QCVC reader attains, they’re more likely to attain the next level.

https://datastudio.google.com/u/0/reporting/1VtXKXFeHu2ItURkfTuFbGsWYetYMZkUe/page/YyE9

Very roughly, the level-over-level conditional probabilities are:

• in-text: 40%
• 5-days: 60%
• 2 weeks: 70%
• 1 month: 75%
• 2 months: 75%

Almost no one’s reached 4 months. This trend probably won’t extend to that level; see andymatuschak/qcc#360 Finishing the 4-month memory level will likely take years .