One reason we don't want to do 50/50 true/false statements is because reality doesn't work like that.

Regardles how you slice it, 50% of the time A will be the right answer and 50% B. Reality doesn't work like that. But I agree that when it possible to ask about a subjet in a way where A and B aren't Yes/No it might be a good idea to avoid using Yes/No

I love your idea of putting CFAR knowledge into the game!! That's great. I'll get someone to do it.

Great :)

Adding SRS sounds like a fun feature. I'll think about adding it.

In case you don't want to much repetition on the first days of using the software, you could add an additional rule: A maximum of 50% of the cards are recently answered, the other 50% of the cards are either new or older than 21 days.

I would also be possible to make some questions like those over CFAR knowledge SRS based while not doing SRS on other questions.