The article states that intelligent life is rare because it took earth 4 billion years(a long time) to evolve human intelligence, which doesn’t really make sens

The article states that intelligent life is rare because it took earth 4 billion years(a long time) to evolve human intelligence, which doesn’t really make sense because given every planet in the universe isn’t destroyed by violent events, they all would get a chance reach 4 billion years, to me that’s a lot of tries.