You can't be just friends with a person who you wish to date. When you catch feelings, summon your adulthood and ask the person for what you want; do not make it an ultimatum, but also know that there is only forward going your way or the highway. Your feelings are terminal to the friendship, it's over already, so you have to move on to romance or turning the page.

Sometimes errors lead to good outcomes.

I totally saw a video about this. Here it is.

https://www.youtube.com/watch?v=WGKIjojADmg

More blades produce more power and more wind passing across the blades produces more power but more blades blocks more wind from passing. Then math led to the optimum design which you can imagine is what we build as modern wind turbines.