I think that 51% of the fediverese even for Google is too complicated, even if he gets such a large instance, it's in the fediverse only one more and it can easy be blocked and excludet by any other instance (several thousend), as it also ocurres with some Nazi instances (Gab and others). Although some instances are small,chow does Google intend to control the instance that a guy has created for him and his friends on his own server? it is in the nature of this decentralized system, self-hosted in private servers, that it cannot be controlled as a whole by a single entity, as is done in traditional monolithic social networks, such as Reddit, X, Meta, . ....it's like trying to eat a broth with a fork- There are already many instances created by corporations, companies, official and gov sites, NASA, ESA, informations media and journalists in the fediverse, coming from all over the world and all hosted on their own servers. It only stands to reason that they're going to tell Google to hell if it try to take control of them. Google has a lot of servers, but can only control these, but not others.