The discussion centers on the grade boundaries for A/S and A2 Physics, with participants recalling that historically, an A grade required around 75% to 80% after scaling. Specific grade boundaries for OCR exams are mentioned, with 240 points needed for an A at the AS level, which doubles for A2. The conversation highlights that actual marks are scaled, meaning high percentages can lead to full marks. Concerns are raised about the lack of discrimination at the A2 level, where an A grade can be achieved with a points total ranging from 480 to 600, and the ability to re-sit exams repeatedly. The variability of percentage requirements from year to year is noted, suggesting that external factors, such as government policies, may influence pass rates.