The Download: the AI Hype Index, and spotting machine-written text

For millennia, during Finland's blistering winters, wind drove snow into meters-high snowbanks along Lake Saimaa's shoreline, offering prime real estate from which seals carved cave-like dens to shelter from the elements and raise newborns. But in recent decades, these snowdrifts have failed to form in sufficient numbers, as climate change has brought warming temperatures and rain in place of snow, decimating the seal population. For the last 11 years, humans have stepped in to construct what nature can no longer reliably provide. Human-made snowdrifts, built using handheld snowplows, now house 90% of seal pups. They are the latest in a raft of measures that have brought Saimaa's seals back from the brink of extinction.