In the early 20th century, math ordinarily used to describe waves was applied to very small systems of particles. This was both strange and extraordinarily suc

In the early 20th century, math ordinarily used to describe waves was applied to very small systems of particles. This was both strange and extraordinarily successful at modeling systems (if only probabilistically). Applying physical meaning to the math has proven to be more or less intractable. Because the models are so successful in their domain, most physicists tend to brush aside ascribing meaning to the math.