It's not the napkin math which is the issue - it's stating it as though future earnings are an obviously known, agreed upon quantity. Napkin math of "I think t

It's not the napkin math which is the issue - it's stating it as though future earnings are an obviously known, agreed upon quantity. Napkin math of "I think they can sell x units at y margin with z fixed costs because of a, b and c, and I think that will grow at g because of whatever and my back of the envelope says that is worth $" would be great. Ie, real insight. Low precision, high accuracy insight with napkin math would have been wonderful.