of different size or shape. The larger, or heavier coin is assigned primacy (and is reported here as first, dominant, outcome) while the outcome of the smaller one comes second. Let H be heads and T tails. If the coins land H, T, yang dominates and the outcome is young yang, unchanging. There is no need to throw the coins again for the same line. If the coins land T, H, then yin dominates and the outcome is young yin, unchanging. Again, there is no need to throw the coins again for the same line. If the coins land both on heads (H, H) then the outcome is for sure yang, but one must throw again to verify if the yang is changing (aka old) or unchanging (young). In case the second throw yields at least one H (either H, H, or H, T, or T, H), then the yang is changing. If both coins land on T (T, T) at second throw then the yang is unchanging. If the coins land both on tails (T, T) then the outcome is for sure yin, but one must throw again to verify if the yin is changing or unchanging. In case the second throw yields both tails (T, T), then the yin is changing. If any of the two coins lands on H (either H, T, or T, H, or H, H) at second throw then the yin is unchanging. The modified two-coin method yields old yang (changing) 3/16 of the times. Unchanging yang 5/16 times, and unchanging yin 7/16. The remaining 1/16 outcomes is old yin (changing). It is considered simplified as it reduces the number of throws and calculations needed to correctly identify the outcome of each hexagram line, compared to any other method. While this has its advantages, some purists consider the time required to build the hexagram as a fundamental aspect of I Ching divination, for its ceremonial as well as introspective purposes. This said, any other coin based method can be considered similarly lacking on this regard, when compared to the yarrow-stalk method. As is the case for the conventional two-coin method and the four coin method, the simplified two-coin method can be boiled down to binary numbers, simply interpreting any H as 1 and any T as 0. Then, old yin takes value of 0000 (0 in decimal numbers), unchanging yin values between 0001 and