You misunderstand. &quot;Because science&quot; is the correct reason to do anything. It is short hand for everything objective and rational in the world. It means, &quot;we&#x27;ve conclusively proven this will have a better outcome; your personal whims are baseless.&quot; Why should we decrease fossil fuel use? Because science. Why should kids get vaccinated? Because science. Why is the Earth 6 billion years old? Because science.