The basic claim is false on many levels: Very few of us are lucky enough to come across our soulmate within our lifetimes. We tend to choose our f

The basic claim is false on many levels: Very few of us are lucky enough to come across our soulmate within our lifetimes. We tend to choose our friends and spouses from the limited pool of people available in our immediate vicinity: students at our schools, people who live in our neighborhoods, colleagues at our workplaces. Statistically, it is extremely unlikely that we will come across our soulmate. First off, the notion of "soulmate" is bogus romantic nonsense, and the notion that the person most compatible with us is just like us is demonstrably false. My father and I were very similar to each other and fought and argued all the time, because we were both cantankerous, ornery and contrary. My life-partner and I--who are as close to "soulmates" as anyone can be to that basically ridiculous idea--are very similar in some respects, very different in others. The areas where we complement each other are as important as the ones where we reinforce each other. More importantly, the claim that there is some great unexplored mass of humanity where our "soulmate" lurks is bogus. There are only 5000 people in the world. Maybe fewer. If there were more we wouldn't keep running into each other all the time. That is, the number of people in our tribe is surprisingly small, and anyone who is sufficiently similar to us to answer the questions the same way is already almost certainly a member of it, so dipping into the pool of random strangers across the world is unlikely to improve the odds much in most cases, and citing an anecdote or three--which some people will be tempted to do--does not change this fact. The human social graph is full of islands. Finally, to work as advertised the test requires that answers to the questions are uncorrelated, which is almost certainly not the case. So most people will find themselves with hundreds of "soulmates", a very few will have none. Unique matches will be extremely rare. It's a superficially fun idea that turns out to be more of a monument to the failure to understand probability than anything else.