Of course I can... within my niche anyway! I'll provide some extreme examples to help show you what I mean.
Example 1) A good games developer can easily create a game in a week that would take the average developer months. The average dev has never even developed a game before.
Example 2) Have you ever worked on a large codebase (500,000+ loc)? Fixing a defect in a codebase that kind of size is not something you can easily google. A person who has experience with large enterprise systems knows the kinds of typical architectures they have and if trying to find the source of a bug knows how to heuristically carve up the solution and perform a kind of log n search. A developer without this kind of experience has to look at almost the entire search space.
Example 3) A developer medical domain knowledge can quickly determine if the requirements for a new bit of medical software actually make sense and are a reasonable approach to the problem. A great developer without this domain experience is going to have many more false starts.
Of course in the real world the disparities between individual developers are not that apparent because we work as teams and help each other out. E.g. In the enterprise example a more senior member will usually help you narrow down the search space even if just with a simple "oh for that kind of problem you need to check for x in the audit tables" or a "go talk to Steve about that as he is an expert in that subsystem"
Example 1) A good games developer can easily create a game in a week that would take the average developer months. The average dev has never even developed a game before.
Example 2) Have you ever worked on a large codebase (500,000+ loc)? Fixing a defect in a codebase that kind of size is not something you can easily google. A person who has experience with large enterprise systems knows the kinds of typical architectures they have and if trying to find the source of a bug knows how to heuristically carve up the solution and perform a kind of log n search. A developer without this kind of experience has to look at almost the entire search space.
Example 3) A developer medical domain knowledge can quickly determine if the requirements for a new bit of medical software actually make sense and are a reasonable approach to the problem. A great developer without this domain experience is going to have many more false starts.
Of course in the real world the disparities between individual developers are not that apparent because we work as teams and help each other out. E.g. In the enterprise example a more senior member will usually help you narrow down the search space even if just with a simple "oh for that kind of problem you need to check for x in the audit tables" or a "go talk to Steve about that as he is an expert in that subsystem"