It's probably to know which implementation will be the best one. I can have two different ideas about how something can be implemented in mind. I will think abo

It's probably to know which implementation will be the best one. I can have two different ideas about how something can be implemented in mind. I will think about it for a long time trying to figure out which one is the best. I know that if I choose the wrong one and later try to change to the other implementation, that will be a waste of time. That's why it feels like I have to figure out which one is best before I start. Sometimes it might be a better idea to just do something instead of thinking too much though but it's pretty hard to do that.