Agreed. When I first saw the title, I was wondering if I missed something from The Structure of Scientific Revolutions. And it doesn't really qualify as a para

Agreed. When I first saw the title, I was wondering if I missed something from The Structure of Scientific Revolutions. And it doesn't really qualify as a paradox in my opinion. Perhaps briefly counterintuitive. But the real question of "X is free and does the 'same thing' as Y, which is not free: so why are more people using Y?" Is perfectly easy to explain via UI/UX, discoverability, ease of install/uninstall, or network effects (all my friends/coworkers use Y, so I will too). This seems like an uninteresting question named after a very interesting writer.