I owe you all an explanation of where I have been. The story starts in 2022 when ChatGPT came out and everyone decided to get rich. I know I did. So, I bullied my dear friend – a legendary lawyer – into building a legal writing tool. Within a week we knew our mission was close to impossible because of failures in GenAI. There were imperfect products we could have sold but didn’t – dooming ourselves instead to a three-year product cycle to defeat the nightmare called LLM hallucinations.
I was the chief architect, in over my head despite starting at the Stanford Artificial Intelligence Lab back in 1978. Then last July I had a heart attack and a stroke followed by 10 weeks in the hospital. We looked done.
While I was recovering, my middle son, Cole, 21, took the architect job and did a better job than I ever could have. He saved the company, leading a triumphant demo recently for a $14 billion customer. Then on April 14th Cole went to sleep and never woke up. I hope that never happens to you.
This picture was Cole at age 3 when he taught himself to read. Nobody taught him — he taught himself. He picked up a book and read it then picked up another. The kid could do anything. He conquered LLM hallucinations. I was the architect but Cole wrote the code. I’ll explain how in a couple columns from now. For now just know my heart is broken.

Really sorry for your loss! Didn’t you lose another child years ago to SIDS?
My condolences on the loss of Cole.
So sorry to hear that about Cole. Heartbreaking. Praying for you and your family.
I’m so sorry for your loss. You’ve had a year of hell with the heart attack and stroke on top of losing your son. I truly hope that’s the end of tragedy in your life.
Welcome back, I’ve missed your columns. Been following you since the original days…
Words can’t express how sorry I am to hear about your loss. Thinking of your and your family.
So sorry for your loss. It must have been devastating to see such promise gone so quickly.
Oh, f.., I’m so sorry,
Such terrible news. Very sorry to hear about this and sending sincerest condolences to you and family.
So sorry for your loss. I can’t find the words. My condolences to you and your family
Sorry for your loss, have been missing your columns for years even just 1-2 weeks ago, wondering if you were ok.
Oh. I am so, so sorry.
So sorry for your loss. Parents should never outlive their children. My condolences to you and your family.
I’m so sorry for your loss. It’s devastating to lose a child. My thoughts and prayers go out to you and your family.
Oh my dear God, Mark. I was looking around to find Plane Crazy for a friend just moments ago. And saw your heartbreaking message.
And after you surviving a heart attack and a stroke!
Mere words can’t get to the heart of this tragedy for you and MaryAlyce.
Please send an email so I can see for myself that somehow you are still standing.
Katy
OMG, that was shocking to read. So sorry for your loss.
Just found out you’re writing again and … this. I am so sorry to hear that you lost Cole. It’s hard to imagine the pain you’re going through, losing a second child. Parents should not have to bury their children.
I hope you can find some way to bear this. Best wishes & deepest sympathies.
Sorry to hear that, man
There are no words…
I remember back when you were also sick and your kid typed your column for you.
I remember you didn’t let them read the comments.
which to this day remains good advice.
I’m so sorry for you, your wife and your surviving children.
I’m so sorry to hear about Cole. Please accept my sincere and heartfelt condolences.
Bob, words cannot express how sorry I am for the loss of Cole. It is completely heartbreaking. You have been through an absolute hell of a year, and I am sending you and your family all my strength and deepest sympathies. It is good to see you writing again, but your health and your family come first.
That is just heart breaking.
I’m terribly sorry for your loss.
I’m glad you are posting stuff but I’m extremely sorry for your loss.
Mark,
Words cannot describe how sorry I am for your loss. It’s hard to fathom one day you are with your child and the next day they are gone.
My deepest condolences for your loss.