Go-to-market is having a moment. We talk a lot about how AI has made building easier. Anyone can ship. The question has shifted from can you build it to should you build it — and then, once you decide to build, can you make sure the right people know it's for them. GTM has always mattered. But I think it's becoming THE skill. Here's something that's been on my mind: vertical-specific marketing is not a new idea. Notion doesn't talk to a college student the same way it talks to an enterprise…