Douglas Adams' idea of an "entire geological layer of compressed shoes" sounds a lot less daft than it used to. (-: * https://scientificamerican.com/article/h

Douglas Adams' idea of an "entire geological layer of compressed shoes" sounds a lot less daft than it used to. (-: * https://scientificamerican.com/article/humans-leave-a-telltale-residue-on-earth1/ https://scientificamerican.com/article/humans-leave-a-tellta...