With a LOC you can also recycle those funds for multiple projects. 

Using the BRRR strategy you recycle the same cash over and over with multiple properties. 

recycle place? 

I've used the same funds from my first house-hack, and continue recycling (BRRRR) them each year to buy another, and another, etc, while I continue growing my rental portfolio out of province/state. 

Indeed, we could purchase some we’ve seen for cash but our goal is to use as little money as possible of our own and of course to recycle it over an over.We are faced with a decision, as we have plenty saved for a down payment, along with money for repairs or capital expenditures and holding costs.

But I think your headline about infinite return being BS has valididty for another reason: in order to achieve 100% cash recycle rate you have to keep the remodel superficial. 

How can you take what you now know and transition to a strategy that helps you recycle capital? 

You could get there in 1 year if you’re buying right and doing the BRRR method to recycle your liquid cash.

What I’m trying to understand is why everyone thinks we’ve hit the later stages of this RE cycle.

You need to find a strategy that lets you recycle your liquidity.