Because
individual humans are susceptible to corruption, senility, bribery, relying on information that is 10 years out of date, and a whole host of other problems it is important to either listen to the majority of experts or learn enough about the topic to understand the material yourself.
«Catholic theology affirms that the emergence of the first members of the
human species (whether as
individuals or in populations) represents an event that
is not
susceptible of a purely natural explanation and which can appropriately
be attributed to divine intervention.»