It's a nice story and everything, but this is Hacker News, not CNN/FOX/BBC/<insert random newspaper here>.
On-Topic: Anything that good hackers would find interesting. That includes more than hacking and startups. If you had to reduce it to a sentence, the answer might be: anything that gratifies one's intellectual curiosity.
I think this qualifies.
I thought it was a beautiful, powerful and very moving story, but I didn't really learn anything new.