100% is impossible and was not the point I was making. The only things that is import is R is below or equal 1. The relation between transmission and cases is

100% is impossible and was not the point I was making. The only things that is import is R is below or equal 1. The relation between transmission and cases is not exponential as : 1. Cases can't go to infinity 2. R is variable, and actually changes a lot for plenty of reasons