He's been in their lives for over 10 years. But it goes on, and it will evolve.â. Indeed, Grey's has persevered after the departures of several regular cast members, including Isaiah Washington, Sandra Oh, Katherine Heigl, T.R. Knight, Kate Walsh, Eric Dane, Chyler Leigh, and Kim Raver.
1 Some state that the average human attention span is approximately 5 minutes; others state that most healthy teenagers and adults are unable to sustain attention on one thing for more than about 20 minutes at a time, although they can choose repeatedly to re-focus on the same thing.
The findings revealed human attention span has fallen from an average of 12 seconds in the year 2000 to just eight seconds today. Humans now have less of an attention span than a goldfish (nine seconds average).The decrease was seen across all age groups and genders in the study.he findings revealed human attention span has fallen from an average of 12 seconds in the year 2000 to just eight seconds today. Humans now have less of an attention span than a goldfish (nine seconds average).