Final answer:
Alternative media allow viewers to customize their news experience, often reinforcing personal biases, and enable politicians to communicate directly with the public through platforms like social media.
Step-by-step explanation:
The proliferation of alternative media offers viewers the opportunity to tailor their news and entertainment experience to their personal preferences, which may lead to a more fragmented understanding of politics and a customized news experience that could reinforce pre-existing worldviews.
Alternative media platforms, like social media, blogs, and specialized channels, allow for narrowcasting, where content is increasingly catered to niche audiences. This shift has implications for political communication, as politicians can now bypass traditional media and communicate directly with their audience through social media and other online platforms.