A few months ago, “researchers at West Virginia University stumbled across a gene in the mouse brain that appears to erase long-term memories. When scientists switched off the gene, the mice developed super-charged memory, able to recall the solution to a maze they’d seen six weeks before, an eternity in mouse time. The discovery is only the most recent in a flurry of breakthroughs that promise a new class of drugs that might help us retain newly learned information and stave off diseases like Alzheimer’s.”