With a proper zero-point, strength is relative and transitive. If algorithms A, B have strengths 20, 40 respectively, then their strength ratio B/A = 40/20 = 2, hence B is 2 times stronger than A. If an algorithm C is 3 times stronger than B, we can infer that C/A = C/B * B/A = 3 * 2 = 6, and so C is 6 times stronger than A. Strength transitivity allows a new algorithm to be compared against all the other algorithms by comparing it against only one standard algorithm of choice. This can make research easier by requiring a researcher to compare against one standard algorithm instead of many.