BINARY

From an engineer's standpoint
Binary = 1 or 0
0011=3
1111=15
....
A typical digital stuff

From Kay's standpoint
Not only it's her album name of course..:P
She also like to bring out the message, where
"Everyone should look at anything from more than one perspective"

Just like the hottest song 囍帖街
In addition of the love message from this song,
it also express HK ppl feeling on 'hei tip gai' (one of the HK road) was being dismantled

We also always hear the same theory before actually..
Example,
How a person look at half glass water??
Half full? Half empty?
It all depends how you want it to be..

p/s: This video is just for fun..hehe...