This is the context:
The universe is telling us it is simple. It is astonishingly simple. And yet here we are with thousands of physicists worrying about a multiverse of infinitely complex universes, which we can’t see, and so on and so forth, I think it’s great because they’re all on the wrong lines. All these very, very smart people are distracted with a lot of confusing ideas.
Source: The origins of the universe: why is there something rather than nothing?
(in the Annals of The New York Academy Of Sciences)
I searched the phrase on the internet and found nothing useful. What is the meaning of the bold part?