A couple of them seem to be behind a paywall, or login (at least for me).
I did read up a bit on the others. While I don’t doubt that memory decay begins immediately and that unquestionably short-term memory likely has a, well, shorter horizon of decay (all things being equal) I’m still somewhat hard-pressed to be convinced that, as you put it, “optimal intervals after encoding should be as short as 15-30 seconds.”
No doubt it is conceivably possible for someone to forget something in 12 seconds and, arguably, there is some benefit to all repetitions (to varying levels of effectiveness and/or efficiency), and there are always boundary cases and extreme outliers (as with anything). Maybe at the end of the day that’s just something to be kept in mind when engineering software used by large numbers of people. ¯_(ツ)_/¯
From one of the papers you shared, which I think is a general sentiment most Anki zealots are familiar with:
By this metric, surely a 15-30 interval would be rarely found as the longest possible interval that does not lead to forgetting? Perhaps not never, I guess, but I confess I shudder a bit at the thought.
This probably hedges at the conundrum I would raise: I have a hard time believing that a 1-minute (or smaller) interval could be fairly described as optimal, in almost any use-case. Again, I admit I could be wrong about this and I confess I am super interested to see the new FSRS5 intervals and fully hold space that maybe I am dead wrong and Anki will decide that I need to see things every 14.4 minutes repeatedly and into perpetuity, lolol. If so, then I resign to my fate.
In either case, happy to be wrong and happy to learn however it might shake out.
That seems admittedly unintuitive (to me), though my immediate thought is that much of this may very well depend on what it is what one is studying, how they’re approaching material, difficulty, familiarity, etc.
Do you happen to have a link? I don’t recall seeing that but would love to take a look
My learning steps are 1s 3min with scheduler turned on.
It often happens that I forget things directly after 10-20 seconds of reading it and a lot of times even after 1-5 seconds. For the exact reason you say that 14 min is too extreme and it would lead to cognitive overload with trying to work through 100 cards at a single batch, I use the 1s again interval for that reason.
I have always found working through cards card by card the best solution for cognitive overload and this is to be done by having smaller starting intervals, as small as it could sensibly get.
So if there is a possibility that there is a new model for short term memory where the 14.4 minute base interval is reduced, I am all for it.
I’m pretty sure this is the post he was referring to: Discord
Discord supports links to posts just fine, but you might need to join the server first to use it. Anki
Here is the behavior of the new FSRS-rs version in the current Release Candidate (RC1):
I will update this list as I continue testing the new FSRS.
1-There has been an immediate decrease in registered difficulty after optimizing all parameters and rescheduling all cards (82% → 75%) @rich70521 I wonder what your collection’s difficulty looks like in the new update.
2-With DR set at 95%, I have never seen 9 minutes even for cards at “max” difficulty. It mostly just hovers around 12-15 as minimum intervals, and I am not sure how I should feel about that
3-Card Ease never reaches 100% Difficulty (so far…)
Unlike the previous version where D=100% was a common sight.
Hmm, that’s surprising. I thought the asymptote makes it more likely for you to have higher D values.
I am interested in what the “Answer Buttons” graph is showing in your stats. If it’s high difficulty cards that are hovering around a 12min to 15min range, you can search something like prop:d>0.95 and see how accurate it is (and show us too).
So, you know about the dampening? I liked the change. Thanks to @rich70521.
