response due_time : depends on delay of user input & increased by "Hard" label

[FadriPestalozzi]

Hi all

I love the easy and clean installation of this obsidian-plugin.
Thank you for your great contribution to the community!

Before I migrate my flashcards from the app I currently use (mochi) I tested the behavior of the due_time_intervals by always answering "Hard".

This test showed that the earliest due_time - i.e. the time when a card is again shown in green "due-category" - depends on the difference between this due_time and the now_time.
So, the longer you don't respond to a due card, the longer you will have to wait until you see it again.

For a card which was previously rated "Hard", you probably would need to revise it sooner, not later.
Check out the example below showing the development of time_due when always answering "Hard".

%% flashcard test %%

#flashcards
question
?
answer

test 1:
always answering "hard" asap
recording due_time_intervals for
Hard/Good/Easy

ini=now
1d/2.5d/3.5d
%%%%
1d/2.3d/3.3d
%%%%
1d/2.1d/3.0d
%%%%
1d/1.9d/2.7d
%%%%
1d/1.7d/2.5d

test 2:
reset card
always answer "Hard" but this time with increasing delay between due_time and now_time
--> implemented by setting timestamp farther and farther into the past

ini = now
%% %%
1d/2.5d/3.5d
forgot, due since 1 week
%%%%
1.4d/10.4d/26d
forgot, due since 1 month
%%%%
4.3d/1.2mo/3.3mo

Recommendations

1. To reduce the dependency on a possible due_time_delay, I recommend adding the following parameters of "schedule(" function as user input
   /.obsidian/plugins/obsidian-spaced-repetition/main.js

• lapsesIntervalChange
• ease

2. To focus learning "Hard" content, it would make sense for me to decrease the due_time_interval (e.g. towards minimum of 1d) whenever a flashcard is labeled "Hard"

Cheers
Fadri