This is the end of 2021. I can not believe it has been 2 years since the pandemic. It is a challenging time for many of us. No matter what has happended, it is always good to sit down and spend some time to reflect for the past year. I wrote the annual review blog post every year, and you can find the one for 2020 at here.

Before I go to the details, I want to thank everyone who has helped me and mentored me in 2021. Thanks, Shirley Liu, Ethan Cerami, James Linsay, Franziska Michor and …