If I understand correctly what you are writing here, the competition is in dynamic structures that people individually develop in order to process information. This still supports my point though. In addition, this may not even be a finite system, because information explicit and implied are different in different languages. I live in an area where 3 languages are regularly spoken everywhere, French, German, and even English in offices. The more various implied structures and inferences you need to go through, the slower you progress with it. Even more challenging is when incoming material is by people who never learnt in school how to structure paragraphs and information in general. This can be even harder than being a maths student with the wildest analytical problem. So, the problem remains, natural selection and time makes it harder to survive even in your business. Time itself can reduce your ability to adapt to information. So a strategy of moving becomes self depleting too. Maybe I am misunderstanding your point. Looking at your bell curve diagram, the survival zone seems shifting graduall to the right.