Human limitations
People are limited. Quite simply, our bodies and brains have their limits. The human world and the society are thus adapted and actively created to fit these constrains.
For example: in most societies we pay for products in amounts that we can easily count in our heads. We use a system of short, repeatable and not random (because each has its own meaning) names and surnames instead of individual numbers. We use the language based on universal grammar, although we could create new symbols for each meaning.
However , it does not prevent us from making calculations to send objects weighing more than 3,000 tons (such as the Saturn V rocket) to the moon. We can analyze data on people from all over the world. We can predict the weather, discover distant history and measure time down to nanoseconds.
Yet, research shows that the human cognitive system has hardly changed since the stone age (at least 280,000 years ago) This means that our ancestors had similar abilities in terms of memory, visual-motor skills, attention, perception etc. Conclusion ? We are the same. Our minds have been changed by culture and its achievements — science, language, tools and rules.
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