Scott Alexander reviews and analyzes his 2019 predictions, finding he was generally well-calibrated but slightly underconfident across all confidence levels.
Longer summary
Scott Alexander reviews his predictions for 2019, made at the beginning of the year. He lists all the predictions, marking which ones came true, which were false, and which were thrown out. The predictions cover various topics including US politics, economics and technology, world events, personal projects, and his personal life. Scott then analyzes his performance, showing that he was generally well-calibrated but slightly underconfident across all confidence levels. He attributes this underconfidence to trying to leave a cushion for unexpected events, which didn't materialize in 2019. Scott notes that his worst failures were underestimating Bitcoin and overestimating SpaceX's ability to launch their crew on schedule.
Shorter summary