https://techcrunch.com/2022/03/11/techcrunch-roundup-tested-tam-tips-no-code-tech-survey-writing-crypto-white-papers/

For many first-time founders, determining the size of the market in which they hope to compete is one of their biggest challenges.

I haven’t launched a successful startup, but I have helped write several pitch decks. Each time, the team’s collective anxiety increased when we needed to calculate TAM.