How does human error or oversight change the way humans complete research and other activities?

All human activity arises from the initiative, understanding and reasoning of the person who carries it out. Thus, even scientifically proven research has a large human factor component, in the sense that its interpretation is none other than that perceived by researchers.

Therefore, human error is a constant possibility in all research, given that despite the existence of verification methods, these are still verified by humans and are therefore fallible.

In conclusion, human error can affect any investigative method, because imperfection is an integral part of human nature.

a stronger central government  

its what they are