Man, I couldn't get anything done in that short a time. I know people do, but it always boggles me.
In high school, I ran 4 35 minute sessions per week at lunch... we had 45 min for lunch, plus 5m passing periods, and I had a lunchtime meeting once a week... hence 4 days. It's amazing how different a daily session is - so much less recap needed.
I have noticed, and had my experiences validated in various professional journal articles, that there seem to be three regimes of memory - short term (¼ to 4 hours duration), mid term (typically starting at 2 hours post to 4 hours post event, ending between 1 and 3 days, and proper long term. Daily games tend to stick in that mid term, and the reinforcement moves things into long term better.
@Jd Smith1 I've NEVER had a group online that was all strangers, and the occasional strangers in the group have either moved into the friend group, or have been problems.