What is the suggested Tuning Ratio rule of thumb for mid-career changers?

Answer

A 2:1 ratio—two units of time researching/learning for every one unit of time applying

A good rule of thumb for mid-career changers is to aim for a 2:1 ratio—spending two units of time researching, learning, or networking for every one unit of time spent formally applying or committing resources.

What is the suggested Tuning Ratio rule of thumb for mid-career changers?
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