10 fields where narrow knowledge (chunking) helps:

Narrow Knowledge areas are those areas where we rely on experience to determine future action. You rely on repetitive patterns and there is no innovation involved. e.g. Chess,

1. Firefighters: They rely on their experience 
2. All Sports
3. Service jobs like cleaning, cooking, electrician, etc.
4. Driving
5. BPO jobs
6. Administrative jobs
7. Security jobs
8. Farming
9. Pilots
10. Technicians