In biology things mostly only get interesting on a logarithmic scale. It has to do with the fact that on/off is decided by concentrations. So I was a tad surpr

In biology things mostly only get interesting on a logarithmic scale. It has to do with the fact that on/off is decided by concentrations. So I was a tad surprised for example that I had my drinking water tested for lead. It came back “clean” at 1.9 ug/L, a friend’s came back as “be careful, flush in the morning at 2.7. That does not make sense to me. Although of course a wage difference of 1.6x is pretty significant.