A check
You set a floor of two pages and you manage it eleven days running, then miss a day. What does the missed day mean?
The floor is broken and you have to start again from zeroIt was too high all along and should be halvedOne missed day, and the floor is the same floor tomorrowYou should make up the two pages plus tomorrow's two
Not quite
A floor is not a streak, and it does not reset. Missing one day is an ordinary event in a long practice rather than the end of one. The all or nothing reading, where one miss cancels the whole thing, is the single most reliable way people go from a small consistent practice to no practice at all. Tomorrow the floor is exactly what it was.