為什麼20/20 時事雜誌叫 20/20, why is the name coming from ?

電視台用語2020means 晚上8點20分，用黎表明節目時間。

20/20 係一個正常距離 正常視線
如果你係20呎可以睇清目標,即係你係正常,因為多數人都係咁

If you have 20/20 vision, it means that when you stand 20 feet away from the chart you can see what the "normal" ... In other words, if you have 20/20 vision your vision is "normal" -- a majority of people in the population can see what

即係話：
20/20=1
1=100
100%真實