Ok please use the words "in the world" or "in the whole world" or similar in the future ;), then you will not have problems with the truth...

About Hive, what you describe will never happen. The game theory is very strong in Hive, stronger then you know... the top 20 witnesses makes like ~$8000 per month last time I calculated and it cost only a fraction to run a node... many many people are emotionally invested in the chain, a part of their life story... even if the chain broke down (which will never happen) then a new group could spin up a new chain with the history of hive/steem in it...

"Hive" is forever... you believe in fairy tales, probably made from top witnesses to argue for higher pay lol so simple it is.... game theory is stronger then fairy tales