Is it normal to always obsrerve things in details?

I always tend to observe things minutely, anything i look at! I don't know if its normal or not but if I not only observe it but I try to think why it has to be like that and what is its purpose and in every possible dimensions including its cause and effect of existence. For example if I look at an ash tray I observe its shape, I wonder how it must have been made and how many people must have bought it etc. Not all of it makes sense but it sometimes helps me by answering some completely other random questions.