system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are some people more intelligent than others? Why don't our brains all have the same capability to absorb and use information?
gpt
The capacity to absorb and use information would be determined genetically, and different people have different genes. Furthermore, regardless of theoretical capacity, the actual growth of your brain is greatly affected by diet and nutrition (especially early on). Lastly, your capacity for absorbing and using information is useless if you aren't exposed to information in the first place.

In short, your actual intelligence is a combination of internal and external factors, both of which can vary greatly from person to person.