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GrandFather very well said and explained.
Even if this remember me a big monk of the past ages:
Augustine of Hippo told: "What then is time? If no one asks me, I know what it is. If I wish to explain it to him who asks, I do not know."
in Confessions.
L*
There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.