Example:

> 
> The ideal programming book, according to publishers who sign authors to write them, is "of a high enough technical level to appeal to the professional programmer but basic enough to be highly instructive and easy to understand by the novice trying to get a foothold on the subject," As one who is signed to write such books, I consider these requirements to be on a par with designing a full-fledged competition automobile that can out-accelerate any other
>  race car and yet still **gets 43 miles to the gallon** for those persons who want an economy car. The two are not simultaneously possible. However, one must still make an attempt to offer technical materials to a broad range of readers.
> 
> 
> 

I'm not sure how to exactly interpret that line.