The Quick Fire Round

We call them cookies because Subway is an American company. So therefore, when they were doing marketing, they're not going to change the words. I think the cookie monster would not turn down a digestive biscuit. The next quick fire question comes from at Y4X1T via Twitter. They say 63 Earths can fit inside Uranus or Uranus. If you're that way inclined, doesn't make clear whether this is a simple volume comparison or whether it's considering sphere packing. Can you shed any light? Yep. Matt feels like we've done enough sphere packing over the year.