My first contact with entropy was in chemistry and thermodynamics and I didn't get it. Actually I didn't get anything from engineering thermodynamics books such as Çengel and so.
According to entropy, and thermodynamics in general, I can't recommend enough the notes [0] of prof. Zhigang Suo of Harvard. It's a new way of presenting thermodynamics and I finally get it... contrary to when I took a thermo course at university.
For instance, Mathematica is great, we can actually use and see the domain language (which is symbols, subscripts, Greek letters) while coding mathematical formulas instead of weirdly translating everything into English.
I for one would love to see us evolving past ASCII
Also with gold. Some news headlines: "Turkey tightens regulation of jewellers after demand for gold soars", "Turkey's Erdogan repeats call for citizens to convert forex, gold holdings".