
Love equation
It was a loop that passed through my life
"If one day
My heart is consulted
To know if it went wrong
It will be difficult to deny it"
Once, after many (more than usual) months trying to find an answer to a problem, completely stuck, I heard from my advisor at a group meeting with all his doctoral students:
"Nobody here has good results! That depresses me!" (shouting, with a very red face).
Little did he know that depression hung over all those who didn't have good results.
One day in a class for doctoral students, after seeing the same slide presented in a slightly different version by another professor for the 4,472nd time, I had a click. It was a click that made me understand how to change that story of getting stuck. Or at least how to try.
The slide:

My observations:
- Beginning of the whole system: Motivation of the model, in pink. Click number one.
- In each of the steps there is an arrow, in dark pink, that goes back to each of the previous steps, but the one I understood as the main one was the feedback to the first step, the motivation. Click number 2.
What were my real motivations up until then? To satisfy a being that screamed at me externally, and an internal being that was very angry about it all—myself. It couldn't be like that.
Understanding that the motivation was wrong helped a lot, but it still hadn't solved the problem.
Clarity came when I understood that love was missing from my motivation. It was there, in fact, but I wasn't accessing it. It was hatred that came when I tried to understand calculations and write mathematical formulas.
I wanted to HAVE, not TO BE. I wanted to have a model, not to be a person with that learning.
And in that learning, I didn't even know that love had to enter the equation.
"Lives in philosophy
Why rhyme love and pain?"
Love (amor) rhymes with pain (dor) in Portuguese
I decided to stop making suffering my motivation and add the looping:
motivation = learning, with love
every remaining day of my project. And that's how the end was just a result of all the days in between.
The 1st song: "Foi um rio que passou em minha vida" (It was a river that passed in my life) - Paulinho da Viola (1970)
The other song: "Mora na filosofia" (Lives in philosophy) - Caetano Veloso (1972)
The slide: Parameter estimation and modeling, modified by me.