Lee Holloway was a brilliant coder, co-founder, and master architect of Cloudflare. He was “the resident genius, the guy who could focus for hours, code pouring from his fingertips while death metal blasted in his headphones.” But over time he became withdrawn, sleeping for days at a time, unable to engage with his family or friends. And his affect, when he did speak, was strangely flat. As Sandra Upson reports in this exceptional piece at Wired , no one knew a degenerative disease — frontotemporal dementia — lurked inside his brain, slowly killing off cells in his frontal and temporal lobes, irrevocably altering his personality in startling ways . He was the master architect whose vision had guided what began as a literal sketch on a napkin into a tech giant with some 1,200 employees and 83,000 paying customers. He laid the groundwork for a system that now handles more than 10 percent of all internet requests and blocks billions of cyberthreats per day. Much of the architecture he ...