# Reflection: You Just Looked Inside the Box

## Reflection questions

1. How close was your guess to the real numbers? What surprised you most?
2. Name one thing you now understand about "the computer" that you couldn't have explained
   before this module.
3. When you eventually run `kubectl describe pod` and see `requests`/`limits` for CPU and
   memory, what do you now expect those numbers to actually be constraining?

## Real Ops takeaway

**Every resource limit you'll ever configure — in Docker, in Kubernetes, in a systemd unit — is
a promise about exactly the three things this module named: CPU, memory, and storage.** You
can't reason well about "why did my container get killed" or "why is my Pod stuck Pending"
without this base model. This module isn't computer-science trivia — it's the vocabulary the
rest of ROOT_ assumes you have.

This module is complete. Continue to the next module.

## Instructor Notes

**Discussion questions for a live classroom:** question 3 is worth spending real time on — it's
the first moment students connect this abstract lesson to something they'll type as a real
command many courses from now. Naming that connection explicitly here pays off later.

**Approximate timing:** 5-8 minutes live discussion; 5 minutes self-paced writing.