Or is there a limitless supply of rich people willing to pay seven figures for a nondescript two-bedroom bungalow that was built as a starter home for blue-collar workers in the 1940s?

IMO, true automation requires 3 platforms: A front end website (lead capture) + Back-End (CRM) + Automation.While the possibilities are limitless, I traditionally see the same pattern in each business.

There are limitless possibilities when working with containers.

We all have the same LIMITLESS potential and can all reach the same heights.  

Getting it right is more important and going fast, unless you have limitless resources and can afford to make mistakes.    

So long as you have your down payment funds and the building is hitting a DSCR of 1.2 the amount of money you can borrow is limitless. 7-8 in C-Class.

Real estate offers almost limitless possibilities for success.2.

In my opinion, the key is to educate yourself, never stop learning about the limitless ways investors can structure a deal.

Time is limitless when you no longer view life as a race. 

However, if you already have a balance in Roth IRA by converting that into self-directed as Brian mentioned you can have better control over those funds and virtually limitless investments choices.