There are two religions in productivity: 1. The Pomodoro Cult: Work for 25 mins, Rest for 5 mins. Repeat. strict discipline. 2. The Flow State Monks: Sit down and work until you forget to eat or pee.
I tested both methods for 3 days each on the same task: Coding a basic app.

METHOD 1: THE POMODORO

24:59

The Experience: I set the timer. I started coding. At 24 minutes, I was just understanding a bug. *DING* The timer went off. "Break Time!"
I forced myself to stop. I walked around. When I came back, I had lost the context. I had to re-load the problem into my brain.

Verdict: Great for boring tasks (cleaning, emails). Terrible for deep thinking. The interruption is artificial. It breaks the "RAM" of your brain.

METHOD 2: DEEP FLOW

The Experience: I put on noise-canceling headphones. I started coding. I looked up, and 4 hours had passed. My coffee was cold. My neck hurt. But the feature was done. I didn't check my phone once.

Verdict: Incredible output. But physically draining. The crash after a 4-hour flow session is real. I was useless for the rest of the day.

> THE DATA

RED: Pomodoro | BLUE: Flow State (Output/Hour)

"Pomodoro prevents burnout. Flow prevents mediocrity."

> THE HYBRID SOLUTION

I realized neither is perfect.
For "Manager Tasks" (responding to people, planning, organizing) -> Pomodoro is king. It keeps you moving.
For "Maker Tasks" (writing, coding, designing) -> Flow is required. 25 minutes is not enough time to load the context.

My new rule: Use Pomodoro to start. Tell myself "Just 25 minutes." If I hit Flow, ignore the timer. Let it ring. Keep going. The timer is just the ignition key.