As most in this thread are saying, I am able catch on really quickly to most things and reach a pretty good level of competence in short fashion. But, there have been things that people have tried to show me how to do and it's just a complete mess. Stuff that is very "common sense" for most S's. In these instances, my Ti wants to analyze the process and break it down into smaller pieces so I can understand it better and blah blah blah - there are a lot of things in life where this level of analyzing just isn't necessary at all. My old ESTJ boss would see the wheels starting to spin in my head after he explained something and he would say, "Stop. You're thinking again. Just do it. Dumb yourself down, make like a monkey, and just do it. It's really SUPER easy. It doesn't require much thought at all." One example that comes to mind is when he showed me how to use a jackhammer to break-up a concrete porch. He demonstrated how to do it, then handed it to me. I held it in my hands, tried to get a feel for how heavy it was, thought about what the best way to hold it was, then started thinking about what part of the porch I should attack first (I was strategizing which is normal for us). He saw all these wheels spinning and he said, "This is demolition. Don't think about it. Just bust up the concrete as quickly as you can. A monkey could do it. Just pull the trigger and go." That goes against the grain for me. I always want to understand something thoroughly first.
The other way I make mistakes is due to being N. Most S's, while operating the jackhammer, are able to stay focused on exactly what they are doing. Their full attention is on that jackhammer and what they are doing. With my Ne, after 30 minutes of doing something, my mind starts to wander to other things, ideas, brainstorming, etc. Things just start popping into my head, and before I know it, I've made a mistake because I lost my focus on what I'm doing. Ne wants to see the "big picture". While I'm operating that jackhammer, maybe a dog walks into the backyard or a gust of wind comes up and blows over a trash can, etc, etc. Ne sees all of that, wants to take all of that in and process it, instead of focusing on the very small task of "just simply operating the jackhammer".