If you are thinking about online dating, you may see that most want you to take a compatibility test to see who you should meet. Though there are some advantages to this, it may not be the most important thing. If you think about it, you probably know couples that seem compatible on paper, but do poorly in real life. Along the same lines, you may know a very happy couple that should have never had a chance past the first date. That doesn?t mean you should not do these, but it does mean you shouldn?t put all your hopes on the outcome.