throwaway420 is correct that attraction will get you more dates. However, the outcome of a first date with any particular person also seems to have high variab

throwaway420 is correct that attraction will get you more dates. However, the outcome of a first date with any particular person also seems to have high variability (if you were somehow able to repeat it!). There are so many small factors that make a "great" date, e.g. both people's mood, their openness, the date activity, confidence/actions, other options at the time, etc. Even if you are both wildly attracted to each other, some people are only looking for the novelty of new people. Others have high standards for a date that are only rarely met. Nowadays, many people line up so many dates that the odds of a single one working out are low. They've lost those "butterflies" that are often needed to even be open enough to match with someone. So, given all of this variability, there is unlikely to be a "perfect" matching algorithm.