Thomas goes on to describe the sheer scope of Facebook and Google's market power, citing Facebook's roughly 3 billion users and Google's 90% market share in search. "It changes nothing that these platforms are not the sole means for distributing speech or information. A person always could choose to avoid the toll bridge or train and instead swim the Charles River or hike the Oregon Trail," Thomas writes. "But in assessing whether a company exercises substantial market power, what matters is whether the alternatives are comparable. For many of today's digital platforms, nothing is."<p>Thomas states that in order for an account like @realdonaldtrump to be truly classified as government controlled, "the power of a platform to unilaterally remove a government account" would have to be "reduced."<p><a href="https://news.ycombinator.com/item?id=26700921" rel="nofollow">https://news.ycombinator.com/item?id=26700921</a>