Last year at this time, a reader of The Chronicle asked me if 2020, the Year of the Rat, would be a good year for him. He was born under the sun sign Sagittarius during the lunar Year of the Sheep. I was happy to tell him that it would be a good year for his sign. There would be challenges, but they would lead to amazing and wonderful opportunities, beneficial changes in his life and career. I spoke to him again this week, and he asked me the same question about 2021, the Year of the . . .