I came across a paragraph in “Good Fit for Today’s Little Screens: Short Stories” in New York Times.
“The generation of writers out of college in the last few years has been raised to engage with words like no generation before,” he said. “Our generation was raised on passive media like television and telephones; this generation has been engaged in writing to each other in text messages on a 24-hour basis. I think it has made them bolder and tighter.”
I don't know what "tighter" means here. Is "bold and tight" an idiom? what does it mean?