Where basically data centers, especially what's it called? The AI load ripple. Essentially what happens are these data centers are and high performance computing are Large clusters, they're all processing about a gigawatt of compute at a time. 

And they're all processing essentially the same problem at the same time. And then as they cache and process the information, they drop the load about 70% before they take up again. 

And in that process, essentially, it's like strobing on the grid. And that presents a big problem. It's like a...