already are games that are bigger than gta v or any gta games
note: it helps to know what the forget you're talking about before posting, aka watching/reading OP
GTA V world is suppose to be much much bigger than all those.
I'd heard 3.5x the size of Red Dead Redemption. Counting explorable underwater terrain, it goes up to 5x. Which is pretty loving big, other games notwithstanding.
Pretty sure Jaxx is using "bigger" as "more popular", not to describe a literal larger game.