How many times have you written a metacircular evaluator in production? How many people code just fine without knowing Maxwell's Laws of Software as one popular

How many times have you written a metacircular evaluator in production? How many people code just fine without knowing Maxwell's Laws of Software as one popular blog post describes? Peter Norvig's review on Amazon agrees with you, I just think it is a bit overrated with infinite respect to Norvig as he could probably force choke me with his mind from 5 miles away :)