Let's say that someone somewhere has been keeping tabs on where I've eaten for the last six months. That person might be able to predict my next meal, but chances are, it won't be all that accurate. After all, there are so many factors that go into how I choose my meal -- from what I ate for breakfast to whether or not I saw an ad for fried chicken that morning on my phone (in which case, Popeye's might be getting some business from me). Even assuming that the all-seeing overseer of my lunch habits has data on what I eat for breakfast and dinner, when and how often I go to the gym, whether I was out late last night, my sleeping habits, the weather, what ads I saw on my phone and so on, there are so many variables that it would take ages for that person to find a pattern -- if one even exists.