Home › Forums › setting the stage › advantages question 3 › What’s the difference? This topic has 0 replies, 1 voice, and was last updated 5 days, 10 hours ago by timothe.rhein. Viewing 1 post (of 1 total) Author Posts October 7, 2025 at 3:32 pm #13472 timothe.rheinParticipant The difference is that the equations that describe solids (QM equations, Shrodinger equation) are much harder to solve than classical equations used to build bridges. Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In