This letter to my son serves as the final chapter in my book about my father, “Brain in a Jar.” I thought it would be appropriate to share on this day—David’s eighth birthday. Dear David, When we returned from Singapore, in the summer of 2010, we had lunch with Grandpa Beau at the Perkins Restaurant…

Dearests, When we visit Beau next week, we have a new plan. Instead of “freaking out,” which is what I usually do (and cry), we’re going to show him some pictures put to his all-time favorite song. I’m also going to read to him. Going to Juniper with an activity in mind will keep me…