i think it all depends ..
some people work better after contemplating
or studying, or having a deeper understanding of something
it is like making a portrait of an old friend or family member
as opposed to a stranger ...
some people work better by letting whatever it is they are photographing
hit them all at once.
i work better the 2nd way ... the longer i am somewhere pondering, contemplating
the less i feel connected to my subject ... just like i find it way more difficult to photograph
someone i know ... a stranger to me is much easier, AND there are no expectations ...
maybe contemplation leads to expectations as well