The packet model stores only count and energy per packet, not reaction kinetics or molecular pathways, so its output is a checked energy total rather than a chemical prediction. With 5 packets at 12 J the input energy is 60 J exactly for the stated toy ledger; real biochemistry needs rates, free-energy changes, concentrations, conformational states, and measurement uncertainty.
The source packet is an exact energy ledger, not a reaction model. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.
highlighted = computed this step
Packet bookkeeping is not reaction kinetics
This model stores only packet count 5 and packet energy 12 joules.
5packets at12J
The honest claim is the total
The only output of the packet ledger is input energy 60 joules.