A great fallacy I've observed on numerous occasions is people claiming "this thing is terrible, this other way would work better". They say that if only things were done this way (plug in their idea), they would work better. Some have great confidence in their ideas too. But what they fail to realize is that things are the way they are already because that is the optimum solution. The world has already spoken and optimized itself around this way of doing things and not your way. 

Of course this is is not always true. The gap where there is a significantly better way of doing things is where innovation lives. The challenge is identifying the gap vs. recognizing what is already optimized (it ain't broken, stop trying to fix it). 

One way people tackle this is fuck around and find out. They fuck around long enough to find out what was already known. Stop trying to reinvent the wheel. But occasionally they are correct and actually find a better way to do something. 

I don't know where I'm going with this. I guess... my point is that it helps to think about things before jumping into them. Measure twice cut once type of deal. But once you jump on it, test it quickly.