Linear CEO @karrisaarinen: "I took a break this summer from paying attention to AI. I thought that when I came back, I'd feel left behind. But when I came back, I realized that nothing has really changed. There's new models, there's new techniques, there's new agents. But in the end, making great products, increasing revenue, and building the business—it's still hard. It's clear the tools are getting better, you can do more, you can do it faster. But I think the more important question is:…