Ok first of all, let’s establish that SaiKang (SK) always comes from upstairs. Sk cannot spontaneously appear, nor does it spontaneously disapper. So we now have the first law of SK
First Law of SK states that SK cannot be created nor destroyed, it can only be passed on to one bearer to another.
Alright, so from the illustration above, we see that there’s a ladder for the SK to travel along between the Upstairs and the Downstairs. Since SK always comes from the Upstairs, SK will travel down the ladder via gravity to the downstairs. However, SK is unable to counteract gravity so the second law is established.
Second Law of SK states that SK can only travel down from the upstairs to the downstairs and never the other way around.
Now let’s explain HOW MUCH SK is passed around. It depends on the upstairs. If your upstairs is constipated and likes to keep the SK to him/herself, then the amount of SK that travels along the SK ladder is insignificant. However, if the upstairs loves laxatives as much as the number of bytes of data in 1 terabyte, then the downstairs will receive the most amount of SK. Note that the middle portion of the ladder do not receive any SK at all. SK only ends up at the ends of the ladder, never at the middle, no matter how long the ladder or how many "middle people there are". Hence,
Third Law of SK states that SK will only collect at the ends of the ladder, independant of how long the ladder is and amount of SK passed is determined by the viscosity of the upstairs. Given the equation:
Where, v = viscosity, Omega = total amount of SK, $ = monthly income of upstairs, S = SK constant, delta theta = size of downstairs
Now, let’s examine the time taken for SK to travel along the ladder. It depends. On what? Simple, gravity and the length of the ladder.
Fourth law of SK states that time taken for SK to travel down the ladder from upstairs to the downstairs is directly proportional to the length of the ladder.
Where t = time, g = gravitational constant (9.81) and L = length of ladder