Quote Originally Posted by jmm99 View Post
Based on the Glaser link, a 20 MT attack (in theory) would take out 100% of Iran's population - and much more, depending on the weather conditions at the time of the attack.
The relationship between firepower and casualties isn't linear because population densities aren't linearly distributed. 25 percent of the Iranian population is at risk from a 5 gigaton strike because 67 percent of them live in cities and almost a third live in one province alone.

Turning Israel into glass would take much less - one can infer they (IDF) would launch on a verified launch from Iran and not wait to see whether the incoming was nuclear or non-nuclear. MAD, indeed, but what alternative would their missile officers have.
Less than ten to wipe out the entire urban population--91 percent of the total population.