According to online political activist Eli Pariser, author of The Filter Bubble, what is the potential risk of Internet search engines that filter results for specific users?

Internet users may fall prey to hyperconsumerism, purchasing more products and services than they want or need, due to targeted advertising.

Teenagers may spend dramatically more time using the Internet and social media.

We may become more and more limited to interactions with people, events, and ideas which we are already familiar, and less likely to expand our world view and broaden our insights beyond our comfort zone.

Frequent users of the Internet may put themselves at greater risk of the narcotizing effect of social media.