What does generation mean?

[AB Ziggy]

People keep on asking best singer of this gen, best song writer of this gen etc and everyone naming artists who been out for like 3 years.
Isn't generation 20 years?

 

[DamonDashsRocAFellaChain]

gen·er·a·tion
/ˌjenəˈrāSHən/
Noun
All of the people born and living at about the same time, regarded collectively: "one of his generation's finest songwriters".
The average period, generally considered to be about thirty years, during which children grow up and have children of their own.
Synonyms
procreation - production

[ame=http://www.google.com/search?q=generation&rlz=1C5CHFA_enUS514US514&aq=f&oq=generation&sourceid=chrome&ie=UTF-8#hl=en&tbo=d&rlz=1C5CHFA_enUS514US514&q=generation+definition&revid=301811813&sa=X&ei=jq8EUcO3D8nmiwKo54HwDA&ved=0CH0Q1QIoAA&bav=on.2,or.r_gc.r_pw.r_qf.&bvm=bv.41524429,d.cGE&fp=c4a6a840dc754efa&biw=1061&bih=702]generation - Google Search[/ame]

 

[Will Ross]

Things change so fast now that Genration are shorter.when I was in middle school and high school. It was no Facebook MySpace hell text messaging was not even that big. People brought music from stores.

 

[the next guy]

25 years of social movement.