The world's insects are falling silent at an alarming rate, a development a critical care physician has warned may signal a looming crisis for humanity. Varon likened the growing quiet to a dangerous moment in medicine, when a patient suddenly goes silent just before a system failure. 'In medicine, silence can be more alarming than noise,' he wrote in The Defender. 'A patient who abruptly stops voicing discomfort or a monitor that ceases activity may signal system failure rather than resolution.' From a physician's perspective, the disappearance of insects is a warning signal, a population-level biomarker of environmental stress and toxicity.