TMI can paralyze a person. The usual way of cutting off information is not a real termination of information consumption, but an undirected, uncritical ingestion of whatever comes up. Random information consumption can be dangerous to one's mental and civic health. The Internet is no information panacea. But the Internet dwarfs the 160 some odd TV channels.
Channel surfing is tame compared to net surfing.
What has happened is that the average information consumer allows corporate America to organize and simplify the Internet for them. Just as corporate America has simplified newspapers and TV, they have taken the Internet and turned it into a one stop shopping experience. The worst part about TMI is the low quality of information which bombards us. Low quality information is little better than clutter. Blinking and winking at you are dozens of banner ads trying to sell you something.