In other words there's shit on the Deep Web that makes 4chan's /b/ or any of the shock sites on the normal Web look like Cartoon Network.
/b/ is just kiddie play compared to Deep Web.
It's not a pleasant place to be.
It shows you the real face of the internet without any moderation or regulated morality/ethics.
NOT something you want in your life.
You will hate yourself for being curious about it.
Granted Deep Web has more information that the regular internet.
But its not safe. Ethically and technically.
There are no laws, protection or prevention against the viruses and trojans you can get from there.
Besides, the good stuff is hidden behind payment barriers.
You need a lot of bitcoin to navigate deep web.