Corrected entry: When Janeway visits Seven as she works to destroy the Omega molecules in the chamber, Seven reports that 11% have been neutralized. They then have a 1 minute, 10 second discussion, and when it's over, Seven states that 18% of the molecules have now been neutralized. Janeway comments, while checking the computer screen, that at the current rate, "this could take hours". Actually, at the current rate, it will take less than 15 minutes. (00:38:20 - 00:39:30)
Corrected entry: Seven of Nine has said before that the Borg only assimilate information, they do not create it on their own, ie. they do not research. But in this episode, she says that the Borg had sacrificed 27 cubes and 600,000 drones while researching the Omega Molecule.