July 13. Two weeks ago I got the confirmation of my genetic defect: In the CCM1 / KRIT1 gene, at position 1905, there is an A instead of a T, and that is the reason for the vascular malformations in my brain. Today I told my son about it. By video, to make it extra ceremonial. He is not particularly concerned – which sounds strikingly like a youthful lack of concern to me. He thinks that soon enough there will be drugs to treat these malformations. He’s also not angry that I might have passed on a bad gene to him. After all, I also passed on some good genes to him.