It read: "Elara—If you're reading this, you're in the server room again. Stop brute-forcing state minimization. Use the implication chart method on page 312. It's faster. —Your past self."
She saved a local copy, powered down the terminal, and walked back to her office. At 8:00 AM, her students would solve the Mealy machine problem. And she would teach it the way her past self had insisted: clearly, correctly, and with a little help from a long-lost PDF.
She laughed. She had written that note twenty years ago, as a teaching assistant. The PDF wasn't just a collection of solutions; it was a conversation across time.
The cursor blinked. Then, a path appeared: /archives/engr/f1998/deprecated/3rd_floor/solutions/brown_vranesic_3rd_ed_full_solutions.pdf