Distance between Blue and Green

As for the traffic light, color of "To Go" is called "Green" in many countries, while people in some countries call that "Blue".
That is not only for the traffic light. Sometimes people call immature person as "green" in English, but in other language, they are called "blue".

What is the distance of blue and green?
Superficially just a distance in frequency spectrum?

Ancient people needed to symbolize all the facts in front of us to communicate in certain rule, I guess.
That's why they invented the word 'Green" or "Blue", area by area.
And that is linguistic system.

How could this symbolized linguistic system cover the area which occupy between "Green" and "Blue"?

Huge unknown crevice exists in our daily lives.
Still so many things we can find as an adventurous explorer!

"American Sniper"

https://en.wikipedia.org/wiki/American_Sniper

Spoiler alert.

Story of,

Distance between Trigger and Target (mile or more?),
Distance between Assumption and Judgement (for shooting),
Distance between Life and Death,

Distance between Father and Son,
Distance between Friend and Enemy,
Distance between Patriotism and Familism,
Distance between Pax Americana and Anti-Globalism,
Distance between Love and Hate,
Distance between Hope and Fear,
Distance between shooter and shooter,
Distance between Hero and Veteran,

All distance as less than a second! And Sniper stands for all these!

Timeless design / Distance-less Design

Internet is the space without Sense of Distance, in a meaning.
That is not only people can connect each other beyond physical Distance, but also because people can edit content anytime from anywhere.
No sense of Settlement.
People cannot measure distance if the objects are always moving.

To leave a footprint on the ground as a record to cross the distance.
Or to forget about the footprint behind to scrawl the world.

Both necessary for life, maybe.

distance from the past till now

Sometimes we look back the past and notice that I come from there till now by selecting some particular options.
We do not notice when we are doing something, especially when suffering or struggling.
And after a while, we came to the point and found some distance which we walked all the way to there.
That is time distance from the past till now and sometimes another distance which we experienced and which is very hard to measure. Maybe that is the age.

I sometimes did look back and thought "was that the best option for me to take?"

But recently I also noticed "when I chose that option, that was the best I thought at that time." So no need to look back too much and no need to regret some choice even if the other option looks much more attractive now. I should respect myself of that age.

To talk about distance between the past and now is not to think about other options we could select, but to sharpen the sense for selecting options by looking back.

To start new year of 2015, just reminding the above to myself.

What will happen to me this year?
What do I want to achieve this year?
How much can I enjoy this year?

And how much can I develop "Distance" this year?