If you think about it what makes "sense" to us is based off of what we already know and have experienced so therefore anything that is extremely different than what we already no is inconceivable. This also goes with our imagination our ability to create things in our mind is also limited by what we already know.So for an example have you ever seen an alien in a movie a book or whatever that isn't based of of forms that exist on our planet. No you haven't because our mind can only conjure from what we have seen so therefore our ability to understand is also limited
hmm thats interesting i didnt know about this.. my dads a writer and we talk about this a lot because hes always pissed off at movies because their aliens are unrealistic to him. thanks for showing me this i like that i came to this same realization.