answer:The statements you give as examples cannot be measured in any useful way. “The Yankees are the best team in Baseball!” is similar; opinions (and interpretations of facts) are like that. Religious, spiritual, and philosophical problems, like your “free will” question, are also hard to measure. However, you can make some statements, like “The Yankees won the 2009 World Series and Hideki Matsui was the MVP” and easily tell if they are true or false. And you can also make predictions and test them, such as “If the EU and American governments continue to pursue austerity measures, the economic recession will worsen, or at best, flatline,” and see if it comes out your way. Knowing the difference between Opinions and Facts is key. Opinions can have pros and cons to them, but asserted facts can be right or wrong.