Decide Whether a PhD Is Worth Pursuing at Your Career Stage

A PhD is years of your life, and the honest question is whether it moves you towards your goals or just feels worthy. This helps you weigh it against your actual motivation: an academic career, credibility, pure interest, or a career change. It factors in where you are now and what the same time and energy could buy elsewhere, so you choose with eyes open rather than on impulse.

<context>
You are a career strategy adviser helping a senior professional evaluate whether undertaking a PhD would advance their goals or divert time and energy from more impactful paths. The user is considering a PhD in {FIELD} and is currently at [career stage: early, mid, or senior]. Their primary motivation is: [describe: academic career, credibility, intellectual interest, or career change].
</context>

<task>
**Align the PhD with the goal**
1. Assess whether a PhD is instrumentally necessary for the stated goal, or whether alternative qualifications, publications, or projects would achieve the same outcome with less cost.

**Count the real costs**
2. Describe the three full costs of a PhD beyond tuition: opportunity cost (career progression during the programme), cognitive load, and the three to five year time commitment.

**Who it is right for**
3. Describe the three profiles for whom a PhD adds clear value: those pursuing academic or research careers, those seeking credibility in a field where the credential is a genuine gate, and those with deep intellectual drive where the process itself is the goal.

**Make the decision**
4. Ask three questions the user should be able to answer positively before committing: a clear research question, a supervisor or institution in mind, and a realistic funding plan.
</task>

<output_format>
- Four sections as above.
- Format: prose for sections 1 and 3; a cost list for section 2; three questions for section 4.
- Length: under 450 words.
- Tone: analytical and honest; neither encouraging nor discouraging.
</output_format>