Yes, it is very probable that you can due to the high probability that there is only one person of a specific gender and D.O.B., living in your zip code. However, it is possible that there could be a few people of the same demographic all living in a larger city.
I do agree with the possibility of being able to trace someone based on all three aspects. I never really considered the likability for having the same demographic when living in a larger city.
Yes, I agree. People are depending too much on the ability to “Google” information instead of learning it. Although being able to search for any information you may need is convenient, knowledge that used to be considered basic need-to-know information is no longer considered so. Take for instance changing a flat tire. How many people under the age of 40 can tell you how to do it, without “Googling” it?
I completely agree with you. After the popularity of Google rose, the reliance on convenient and fast information increased. Many millennials lack the skill of performing research without Google or an online search engine/