Science is the best way we have for producing useful knowledge. For conscious beings to survive they have to determine the important information about this reality, from information and ideas from other real or imagined realities. Because of the brains flexibility as it develops, people are not hard wired to any particular set of information being true thus useful for survival. This is because people (human brains) have the ability to function in many realities with many different sets of natural and artificial governing of rules.
Science is a carefully organized, coherent, experimentally and logically based, consensus view of this reality.