Everybody's own reality differs from someone else's reality. As a consequence there is no fundamental similarity between all those imaginations. People have solved this problem by agreement. So this correctness depends on a quantitative criterion. Concerning the material world there is no other solution because this world consists of quantities of material elements.
All scientific knowledge is quantitative knowledge and the judgment is also a matter of quantities.
Within the world of sciences this is all right, but within the world of philosophy those knowledge is useless. So in the future our knowledge undoubtedly is more accurate than today. In a certain way today's knowledge is unreliable. But philosophers are searching for the universal truth, a knowledge of eternal truth without the demarcation of place and time. Therefore they can't use this knowledge in the philosophical reasoning.