The Why
Your career is not a salary graph. It's a capability graph.
And capability is built through deliberate accumulation of experiences, skills, and insight that you own and carry forward regardless of where you work.
That's what I call your Wisdom Portfolio, the body of knowledge, pattern recognition, and judgment that no layoff, reorg, or market shift can take from you.
Wisdom Debt happens slowly. A year passes where you were busy but not stretched. You shipped things but didn't grow. You managed the work but didn't add a new dimension to how you think.
Busy is not the same as developing.