The real issue is usually not weak focus, but the lack of a system that turns multiple interests into one reinforcing capability network. Da Vinci's answer is to keep one visible anchor and use intersection projects to connect art, code, psychology, and other side tracks into a compounding edge.
You want to draw, code, study psychology, and maybe obsess over astronomy or architecture in the same month. People quickly call that inconsistency. The deeper issue is usually simpler: you have not yet turned those interests into a reinforcing capability map.
School, hiring, and workplace storytelling all prefer linear narratives. They know how to reward ten years of one thing. They are much worse at recognizing someone who keeps creating value by connecting fields. Over time, that external simplification can turn into self-doubt.
Da Vinci was not randomly distracted. He studied anatomy to paint better, observed motion to design better, and moved between art and engineering as one cognitive system. The power came from linkage, not from collecting labels.
Da Vinci: “You do not need to prove that you belong to only one field. Ask whether your interests can illuminate each other. What is rare is not single-skill discipline, but the ability to connect scattered knowledge into a new method.”
People with persistent curiosity across multiple fields who want to turn breadth into a distinctive method, body of work, or career edge.
If you still lack a basic shipping rhythm, build that first. Multi-track integration works much better on top of an existing habit of finishing things.