[davegardner]

The word quantum has been used as a synonym for quantity since the mid-16th century. Its use as a physics term is a much more recent development, which has definitely not fully replaced the original definition yet.

[varjag]

Noone thinks about Renaissance use of Latin when seeing a headline about quantum satellites.

[wyattpeak]

Renaissance use of Latin? It's a moderately common modern English word. Did people think Quantum of Solace was about physics?

As it happens I agree the title is very confusing, but I think you're overstating the point.

[varjag]

Well it was you who picked the century to illustrate your point.

Many of scientific/technology terms have different colloquial uses. Context makes all the difference, as am sure you are fully aware.