2. If top 50 people hold 50% of BTC and BTC becomes the global currency, we may face once again the previous era. Being slaver to certain people.
Except the government owns a good part of this 50% they wont show any interest in it as we expect. There are possibility of a good portion in USA and china. I dont think we can get out of a decentralized space with percentage of bitcoin been held by such few people. It can always be easy for exchanges and whales to manipulate this space but I know at a point they will release some of the bitcoin to pump the space in terms of bitcoin, traders should know when to hold on to some.