Noun
the length of time you can concentrate on some idea or activity
Source: WordNetAccording to USA today, the average length of an attention span of a man in America is 23 minutes. Robert Fripp
Well, his attention span was not long, shall we say. Lauren Bacall
I didn't care for beat reporting, covering the same thing day after day - short attention span. Charles Portis
I would never have been a good scientist - my attention span was too short for that. Octavia Butler
People only worry about the uncanny for about a week; that's the end of their attention span. After that, suspicions turn into shtick. Scott Westerfeld
As a reader, I have a very short attention span and a low tolerance for boredom, and I find that comes in handy with my writing. If I get bored writing something, I pity the people who will then try to read it. John Scalzi