T-Shaped Skills: Go Deep in One Thing, Go Wide in Many

Specialists who know nothing outside their field are fragile. Generalists who know a little about everything but master nothing are replaceable. The sweet spot is the T-shape: deep expertise in one area, broad familiarity with many. The vertical bar of the T is your core skill — the thing you're genuinely good at. The horizontal bar is everything else you understand well enough to collaborate, communicate, and connect ideas across domains.

Your deep skill makes you valuable. Your broad skills make you versatile. Together, they make you someone who can see patterns others miss. Pick one thing to go deep in — not because it's trendy, but because you're willing to do the hard parts. Then deliberately dabble in adjacent fields. Read outside your discipline. Talk to people in different industries. The magic happens at the intersections.