This document provides advice on how to successfully compete in international markets from an experienced entrepreneur and investor. It discusses that while Finland has many promising startups, very few reach international scale or success. The key is being able to solve customers' problems at a large scale from their perspective. It provides an analogy that amateur hobby fishing involves waiting for fish to come, while professional fishing involves learning from locals to target specific high-value fish, testing different baits, and then scaling up operations to catch more fish through building a larger fleet or unique approach. The overall message is that international success requires deep customer understanding and a strategy to scale up problem-solving.