To me it just suggests that the blog is going to explore the topic at a low level, ie, discuss the transmission of bits of data via cables or radio waves, rathe

To me it just suggests that the blog is going to explore the topic at a low level, ie, discuss the transmission of bits of data via cables or radio waves, rather than discussing HTTP or TLS or whatever. Which in general is something I find quite interesting. (I haven't read this article yet so don't know if it's actually good, and the other comments don't give me much hope.)