When you start reading lots of VC tweets and blog posts is easy to get confused by the deluge of acronyms they use. The following are the basic definitions for the most important acronyms.
CAC = Customer acquisition cost
TAC = Total acquisition cost
LTV= Lifetime value
TAM = Total available market
YoY growth = year on year growth
So the summary of every VC advice in the end boils down to the following:
High CAC isn’t bad in itself. But when customer LTV is lower than CAC is when you run into issues !