Tickerguy said :

Quote:

The best-fit hypothesis is that there is no way to control manufacturing at-scale when the product causes the body to produce a pathogenic thing via a biological process.

Exactly,

Something as small as variances in the metabolism of different people could have a huge effect on the rate of replication and the body's antibody response to such an event. Now imagine variations in response between ethnic groups, sex, age, or co-morbidity groups.

Different people can respond differently in fashion to common drugs. Now imagine one where the body's machinery itself is invoked and is self-tailoring - uncertainty just massively increased.

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"Mass intelligence does not mean intelligent masses."