Discernment is a precise science.
Had an interesting conversation with Nathan (5 going on 6) today. I don't remember exactly how it came about, but he does not believe that sponges live in the Ocean. I asked him why, and he said that Spongebob is make believe.
I asked him about Squidward, and Patrick, and he admitted that indeed Squid and Starfish where Sea-Dwelling creatures. But Sponges live in the sink.
I think us adults tend to make the same error quite often.. We through out the baby with the bathwater. We believe some things, and we don't believe others. Not for any solid reason either.
Discernment is a precise science.