“By any reasonable standard of proof, the combination of human epidemiology and track-analysis demonstrates that there is no threshold dose or dose-rate below which "repair" invariably prevents health harm.” HumansDangerStandardsRateTrackHarmProofNuclearCombinationAnalysisReasonableThresholdDoseEpidemiology Author:John Gofman
“Human attention, in the best of circumstances, is a fluid but fragile entity. Beyond a certain threshold, the more that is asked of it, the less well it performs. When this happens in a psychological experiment, it is interesting. When it happens in traffic, it can be fatal.” HumansWellsHappensCertainInterestingAttentionCircumstancesExperimentsPsychologicalFragileEntityTrafficFluidThreshold Author:Tom Vanderbilt