I thought we already knew that.(?)
Congrats to your brother.
Ya got me. I think the big deal here is the computer model that tends to show it. My brother is, among titles and things, a "computational physicist," which until recently was shunned in the profession as mere code-writer. But, as the supercomputers and the "code-writers" have gotten better, their ability to prove/disprove theories has also improved, and computational types have gained in stature.
I don't understand a damned thing in all this, other than my bro is good at math and he gets to play with really, really big computers.
Me, I'm the moron of the family. My sister is a bio-chemist intent on curing cancer. So far, her greatest success has been in bio-tech stocks... that and screaming at kids she sees lighting up, "There's no cure for cancer yet!"