he will say you must "peer with other ISPs", which means you must be friends with them so they will allow you to connect your cable on their router.
he will say everyone should be their own ISP, but he won't explain how do you make these friends.
Discussion
if this is correct (I'm probably missing a lot and being wrong), I still fail to understand how do IP addresses work. if you successfully peer with other ISPs, who gives you an IP address? the other ISP? so you're inferior to them? or does an IP come from the top of the masters of the internet, ICANN, and lands on your door automatically?