Reviewing, the author's analysis and prediction from the day before yesterday were very accurate. Just as BTC retested 91600 last night and rebounded 3000 points, it then retested 90850 in the early morning and rebounded another 3000 points. In the afternoon, it released a signal to stop the decline, and then in the evening, it strongly attacked 96300. This indicates that the bulls' will and determination to protect around 90k are very strong.