This is, technically, an xkcd forum.
2 posts • Page 1 of 1
Title text: "Friction-driven static electrification is familiar and fundamental in daily life, industry, and technology, but its basics have long been unknown and have continually perplexed scientists from ancient Greece to the high-tech era. [...] To date, no single theory can satisfactorily explain this mysterious but fundamental phenomenon." --Eui-Cheol Shin et. al. (2022)
Probably intended as a What If? 2 ad considering the bottom right thing comes up in that, but it's weird that the strip doesn't bother to mention that fact.