Don't be silly, depending on how you define your parameters, you can even categorize everyone in the world into a single category, but just as easily into 6 billion different ones.. So yes, ofcourse it can be put into 16 types. No where does it say that everyone that falls into a specific category is exactly the same. MBTI is just stating 16 categories, of which no doubt one is closest to home, that category is the one you fall in.
that this entire forum is a bit silly... and so is MBTI. Can the personalities of everyone in the world be put into just 16 distinct categories? No... yet here we all are.
So... who wants cookies?
I think its what your looking for with mbti. Ofcourse you could never define a person with a 16 system category, but can you define how they are more likely to take in information and make decisions? Pretty dam close.
Man suffers only because he takes seriously what the gods made for fun - Watts
Cookies are bad for you since most of them are chock full of empty calories. Have a cranberry oatmeal bar instead. Eat healthy for awhile and with a leaner trimmer body, you too will fit better into one of the 16 types.