[tadd]

A PhD is a doctor of philosophy.

In theory one has supposed to:
1. Define a problem
2. Experimented to find data about that problem
3. Communicated that effectively to their peers.

In theory there are no subsets of a PhD. You don’t get a physics or chemistry PhD. It’s just a PhD.

Mine took 8 years. A bit of a race at the end, cause if someone else publishes what your problem is, you are going sideways or starting over.

I use PhD on official correspondence and let others introduce me as Dr. Kippeny when I teach cause that is part of the reason they pay me. Be awesome in my area and solve their problems in a hurry.

I do have it on my checks, cause it did eat 8 years of my life, but that’s my guilty bit of pride.