A study was done on humans' ability to perform tasks, and the study concluded that human processing has a maximum throughput of 10 bits per second. Only 10! This is an absolutely absurd statement considering the ridiculous amount of information recieved by our senses and dispatched to our muscles.
However, researchers are at least performing real experiments and examining real data. Presumably this number has SOME sort of reasonable interpretation, if not as the "information throughput" of a human being.
I propose that this figure is simply the maximum rate of human belief formation. It is only our actual interpretation of our immediate environment which is so limited. In reality, humans can process megabytes of data instantly, form a single simple conclusion, and then form a sophisticated response immediately afterward. We are still limited, it's just that the way the researchers describe that limit is very misleading.