“ In fact, if I read this loosely as most people do, my business card is an MVP.”
It can be, it all depends on what you are trying to test :)
Understanding if would have clients for your business it will prevent you from (or motivate you to) investing on building a website, “renting an office” and hiring a team — which happens a lot if you follow a “just do it” mentality.
An MVP should be used to test the “riskiest assumption” you/the business have/has and learn from it. If what you are trying to learn is “how to make my product profitable”, or “Product Market Fit” this will definitely require a bit more work, time and money to learn.
Also, I found a lot of truth in this quote from Laura Klein, VP of Product at Hint Health, who defends that “An MVP is not an excuse for a crappy product. MVPs are all about learning, and you don’t learn anything from a crappy product, except that people don’t like crappy products.”
I guess the “ultimate” message here is invest as little as you can while you are learning — what you spend should be less or proportional to what you gain (in a profit kind of language).