Ever tried cooking instant noodles or make soup? You know the
1st time when you thought the noodles or soup was ready, you off
the fire and got it out. Then you realised its either undercooked
or overcooked. You nearly wanted to puke but you die die still
clear it. Its at this time you know the timing of the cooking. You
learnt something.
The next time you cook again, you have memorised or rather recalled
the timing and you wait for the time around there then you off the
fire. You take it and eat. Not bad, its better than last time, but
you feel its kind of plain.
The next next time you cook again. You add ingredients this time.
You also take note of the timing. You got it all set and you eat
it. Taste good but it can be more... So every time you cook, you
add more into the food to make it delicious. This can be reflected
as to how you treat a r/s with people.
There is always a first time sour or many times overcooked, but
with every r/s turned sour or overcooked, you learnt how to better
a r/s the next time.
Btw, I teaching ppl how to cook instant noodles. -OO-
Chicken stock! 
