Life can be a Red Queen Race, where each innovation keeps you barely above the rising water. Just because people survived* before [X] doesn't mean they can surv

Life can be a Red Queen Race, where each innovation keeps you barely above the rising water. Just because people survived* before [X] doesn't mean they can survive after having [X] withdrawn. *For certain values of "survived;" e.g. if someone had a bad accident in an isolated area before cellphones, they usually died.