The point is not whether it can be understood. The point is that if two sides both make convincing arguments, how do you pick which one is correct? Without know

The point is not whether it can be understood. The point is that if two sides both make convincing arguments, how do you pick which one is correct? Without knowing the subject matter yourself, as a human one will usually fall back to confidence and charisma. Your brain unnoticeably substitutes "which one is correct" (which is hard / impossible to answer at a dumbed down level) with "who do I trust" which is ruled by charisma and confidence more than anything else. The wrong projects get funded all the time. In the legal system one should do better.