Physicists have discovered a jewel-like geometric object that dramatically simplifies calculations of particle interactions and challenges the notion that space and time are fundamental components of reality.
“The degree of efficiency is mind-boggling,” said Jacob Bourjaily, a theoretical physicist at Harvard University and one of the researchers who developed the new idea. “You can easily do, on paper, computations that were infeasible even with a computer before.”
I don't know enough about multi-dimensional geometry or particle physics to understand the exact impact of this discovery, but this article is a fantastic high-level look at why science believes the amplituhedron is important.