So they go into foreclosure, causing a rise in inventory/further price implosion. 

One month ago, we thought that the unprecedented implosion in US commercial real estate in the month of April following the near-uniform economic shutdown following the coronavius pandemic, manifesting in the surge in newly delinquent CMBS loans would be one for the ages, even though as we predicted May would likely be worse as a result of the spike in specially services loans.

I am not aware of implosion that @Diane G. is talking about as I have added 2 more to my portfolio this year.  

No doubt there are individuals in this and many other RE niches or other industries entirely who will experience an "implosion" but to be so dramatic about an entire industry is nonsense.  

This is EXACTLY the times we were warning against...Another time is coming, perhaps 2 or 5 or more years, when this 5%+ quarterly (at least in my town) growth of new Airbnb properties leads to an implosion of occupancy and/or rent in the STR space.

“Implosions”!

Stock market implosion. 

I've been dabbling with the stock market a bit which went well, if you're willing to excuse the recent implosion of the market due to China's recent economic woes. 

Since the dot com implosion in 2000 easing ahead of the Y2K 'bug' every time the Fed has tried to tighten it has caused a recession and they're forced to backtrack.

(Failed FOREX trader) I see an implosion of the funny money within the coming decade or two.