Track recognition, response, and memory as the body meets a threat.
Answer from the model, then use the explanation to connect the visual mechanism to the biological rule.
Fit 80 clears the threshold of 40 and co-signal 65 confirms danger, so matching clones are selected (activation 72%); clones that fit below 40 are not. Following the best-fitting clone (1 of 5 that bind), on day 10 its antibody output is 15.
Simplified teaching model: one antigen, an eight-clone repertoire whose best-fitting clone is followed over time, and normalized 0–100 values rather than cell counts or antibody titers. Activation requires receptor fit above a threshold and an innate co-signal; tolerance is one number standing in for central deletion and peripheral suppression; memory is a larger starting clone, a shorter lag, and more antibody per cell. Real responses involve antigen presentation, T-cell help, affinity maturation, many clones, and pathogen replication, which this model omits.