so far nobody has given a good example of a catch-22. so i'll use one from the actual book. If you fly dangerous missions in WWII you have to be insane, if you are insane you cannot fly anymore missions. but if you don't want to fly any more missions and request that you're mentally unfit to...
i assume you're talking about abortion, if so that's because there are many people that dont' consider fertilization of an egg to be a human life until it's biological systems develop the complexities that allow for conscious self-awareness, thought, etc.
whatever happened to thou shalt not kill? i don't remember reading a conditional statement in there anywhere. 95% of religious people i've ever met are hypocrites. and if there is a god, nobody on earth has got it right.
Crop circles are made by aliens, who you all are mis-classifying as god. Certainly other-worldly visitors would be seen as such in primitive times, where flight alone was a mere dream. Given there are solar systems in the universe with stars similar to our own, with planets similar to ours...