In a nutshell, Lisi proposed that E8 is the unifying force for all the forces of the universe.
"That would be great if it were true, because I love E8," Garibaldi says. "But the problem is, it doesn't work as he described it in his paper."
As a leading expert on several of the exceptional Lie groups, Garibaldi felt an obligation to help set the record straight. "A lot of mystery surrounds the Lie groups, but the facts about them should not be distorted," he says. "These are natural objects that are central to mathematics, so it's important to have a correct understanding of them."
Using linear algebra and proving theorems to translate the physics into math, Garibaldi and Distler not only showed that the formulas proposed in Lisi's paper do not work, they also demonstrated the flaws in a whole class of related theories.
"You can think of E8 as a room, and the four subgroups related to the four fundamental forces of nature as furniture, let's say chairs," Garibaldi explains. "It's pretty easy to see that the room is big enough that you can put all four of the chairs inside it. The problem with 'the theory of everything' is that the way it arranges the chairs in the room makes them non-functional."
He gives the example of one chair inverted and stacked atop another chair.
"I'm tired of answering questions about the 'theory of everything,'" Garibaldi says. "I'm glad that I will now be able to point to a peer-reviewed scientific article that clearly rebuts this theory. I feel that there are so many great stories in science, there's no reason to puff up something that doesn't work."
|Contact: Beverly Clark|