also can someone elaborate on this "rolling" ranking process that @
Anonymous1991 mentioned? does that just mean they make a decision about you like right after your interview???
This is pure speculation, but I would imagine that just like rolling schools, committees meet regularly throughout the year to discuss applicants who have interviewed. At that time, applicants receive a 'score' of sorts based on their entire application including the recent interview.
Now, during these later stages in the cycle, a higher-up committee meets and discusses those applicants with the highest scores based on the sub-committees. They then make a final decision that probably takes into account making sure they have a well-rounded class. i.e. they might not simply pull from the top ~175 scores or whatever it is.
Like I said, I don't know the specifics of how Duke does it, but based on what I've learned from adcoms, most non-rolling schools have a similar system.
Whether updates aren't taken into account at all, or if they only have maybe a slight impact at the final committee's meeting, or if a sub-committee will review your file upon receiving an update, I don't know and it probably has a lot to do with the specific case (timing, significance, original score, etc.).
One day, we'll have all the answers!