Does this new tent repel both water and the laws of physics?

Feedback is New Scientist's popular sideways look at the latest science and technology news. You can submit items you believe may amuse readers to Feedback by emailing feedback@newscientist.com Ophthalmologist Gus Gazzard writes in after taking a close look at a marketing email he received from WildBounds. It advertised a revolutionary new range of tents from Colorado-based company Big Agnes, which has created a new kind of waterproofing called HyperBead. Marketing is often detached from reality, but one sentence stood out: "Waterproof at the molecular level, this proprietary material shrugs off rain without relying on coatings or chemicals, meaning no reproofing and no PFAS."