Is Micro SaaS trending?

Hey everyone,

I want to learn more about the concept of Micro SaaS.

What is the history of bootstrapping SaaS products? Who has succeeded? Who has failed? Who was too early?

As somebody who has an idea every day and believes you can test and validate an idea within 1 - 3 months, can you change my mind on how this does not work?

Is there an accelerator out there that invests in startups pre revenue/early concept or prototype? I understand this does happen but usually with individuals that are extremely qualified. Would be cool to see an investor doing this at scale.

Any cool links you care to share about MVP's, bootstrapping, and Micro SaaS?

Thanks hackers.