Clarification for people who don't get the joke: M-x doctor (doctor.el) is an Emacs mode — basically a builtin chatbot. This is me feeding the human part of the conversation featured in the Facebook blog post into doctor.el.
I'm not the parent but I think the parent literally pasted the lines from the example as-is. As others pointed out, it's difficult to get an instance running on your own.
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I am the psychotherapist. Please, describe your problems. Each time you are finished talking, type RET twice.
Hi how are you today?
How do you do? What brings you to see me?
Doing well. My favorite food is cake. I just bought one because I got promoted at work!
Is it because you got promoted at work that you came to me?
Thanks so much, I just want to make my parents proud! I am an engineer.
Why do you say just might want to make your parents proud you are an engineer?
I am an environment engineer. What is it like to work in software?
How does it feel to want?
...
Full transcript: https://pastebin.com/raw/GkC5x6SQ