1. A computer hardware-implemented method of preventing a cascading failure in a complex stream computer system, wherein a cascading failure results in an untrustworthy output from the complex stream computer system, and wherein the computer hardware-implemented method comprises: receiving a first set of binary data that identifies multiple subcomponents in a complex stream computer system, wherein the identified multiple subcomponents comprise multiple upstream subcomponents and a downstream subcomponent; receiving a second set of binary data that identifies multiple outputs generated by the multiple upstream subcomponents; receiving a third set of binary data that identifies multiple inputs to the downstream subcomponent, wherein the identified multiple inputs to the downstream subcomponent are the identified multiple outputs generated by the multiple upstream subcomponents, and wherein the identified multiple inputs are inputs to a downstream computational process that is executed by the downstream subcomponent; generating, by computer hardware, accuracy values by assigning an accuracy value to each of the identified multiple outputs, wherein the accuracy value describes a confidence level of an accuracy of each of the identified multiple outputs, and wherein each of the identified multiple outputs are created by a separate upstream computational process in separate upstream subcomponents from the multiple upstream subcomponents; generating, by the computer hardware, weighting values by assigning a weighting value to each of the identified multiple inputs to the downstream subcomponent, wherein the weighting value describes a criticality level of each of the identified multiple inputs when executing the downstream computational process in the downstream subcomponent; and utilizing, by the computer hardware, the accuracy values and the weighting values to dynamically adjust which of the identified multiple inputs are used by the downstream subcomponent until an output from the downstream subcomponent meets a predefined trustworthiness level.