I came across this amazing analogy that Stephanie Chasteen uses in the ScienceGeekGirl blog, where she describes her own transition from physics into science communication.
Thermophilic or acidophilic bacteria do not “know” that the hot spot or acidic island is “over there.” They have no overall map of their surroundings to direct their movement in a straight line towards what they seek. What they sense instead is a local gradient—a small change, right next to them. It’s a little warmer that way. They move slightly. They feel it out again. Move. Feel. Move. And feel. The resulting path is a somewhat jagged, but non-random, path toward the thing that they love!
Career change can seem like an overwhelming task, and this analogy can really help the process of coping with it!
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