For most of the time I have been a VC the prevailing wisdom has been that companies, whether B2B or B2C, should aim for a 12 month payback… — For most of the time I have been a VC the prevailing wisdom has been that companies, whether B2B or B2C, should aim for a 12 month payback of CAC. To be clear on definitions here: CAC = fully-loaded Customer Acquisition Cost (marketing, sales, onboarding) Monthly contribution margin CM =…