This essay reminds me of when someone comes to me and says they have the perfect idea for an app and wants me to build it, and I ask them if they've done a simple, manual version of whatever the core business idea is, to validate it (similar to how PG advises founders to do things themselves in the early days), and they say no and then continue sharing the vision they've worked out in their head of why people will love it and it will be successful.