In the dawn of the last Century most of the experts in Universities were convinced that Physics was a closed field. Back then many experts discouraged students from going into Physics because they felt that there was little left to know. Experts back them were convinced that Classical Physics left only <1% little left to know. The <1% that Newtonian or Classical Physics left to know had to do with little things like "why the speed of light did not change" and an even smaller problem of "Black Body Radiation."
When Quantum Physics and Relativity revealed why this <1% was unknown this revelation reversed the known/unknown ratio. Instead of knowing 99% with <1% left to know Modern Physics revealed that actually less than 1% was known which left 99% of the Universe as hidden or Unknown. As the Observer keeps expanding the Universe more and more this known/unknown ratio is increasing the 99% unknown so that there is less and less of the 1% known.
Ever since Modern Physics reversed the unknown/known ratio all the wisdom of all the ages is arrogantly hanging onto this fading <1% by ignoring the 99%.
-- Wreally reality