Rashi comments on a verse in this week's portion that we should follow the rulings of Torah judges “even if the judge tells you that right is left, and that left is right." Does this mean that if reality is one way, and a rabbi makes a halachic decision the opposite way, the Torah wants us to go against reality?
The answer can be found in the difference between laws that respond to reality and laws that create reality.
Based on Likkutei Sichos vol. 5, pp. 127-8.