Planing long and talking big is simple, because you don't need to face the harsh reality of the actual challenge. You just define some goal, assume it's working

Planing long and talking big is simple, because you don't need to face the harsh reality of the actual challenge. You just define some goal, assume it's working and call it done. But when you plan short, you are already in front of the problems, and see the cracks, and must build your plan around them. This is a bit similar to how everyone can build and promise some elaborated framework, but still fails on the small important parts. So not planing big, might be actual a hint that you are just more based in reality, than in wishful thinking. Which can be seen as good.