Indeterminacy in measurement was not an innovation of quantum mechanics, since it had been established early on by experimentalists that errors in measurement may lead to indeterminate outcomes.
Soft error | observational learning | Forward error correction | Xero Error | Inborn error of metabolism | Error detection and correction | Source-monitoring error | scrivener's error | Round-off error | Postage stamp design error | postage stamp design error | One error and its catastrophic results: ''Napoleon's invasion of Russia#Retreat | Off-by-one error | Observational learning | Observational error | Margin of Error (The Wire episode) | Margin of Error | Human error assessment and reduction technique | error function | error detection and correction | Erotic target location error | End of an Error (2004-2006) | End of an Error | Discretization error | Clerical error | Berkson error model |
Noted Planet X sceptic Brian Marsden of Harvard University's Minor Planet Center pointed out that these discrepancies were a hundred times smaller than those noticed by Le Verrier, and could easily be due to observational error.