A technique for distributed packet processing includes sequentially passing packets associated with packet flows between a plurality of processing engines along a flow through data bus linking the plurality of processing engines in series. The method may include issuing, through a special purpose vehicle, using computer processing components, a longevity bond having returns following a longevity index defined for a reference population of a pre-selected cohort of beneficiaries. The first idlers are positioned on opposite surfaces of the conveyor belt for vertical alignment. The modified layer is formed between the insulating layer and the conducting portion.