The link for this post uses a read-only front-end for Twitter, which can be easier to read for viewing a full Twitter thread.  The Tweet that kicked off the thread is:

> 16 months ago I gave a symposium to a Venture Capital firm on low temperature differential Stirling Engines powered by hole as deep as a water well to power a Bitcoin miner.
> 
> Half of the advisors on the call said “impossible”.
> 
> We just proved it using an S9!
> 
> A new FREE world!
> 
> ![New Stirling motor fueled by geothermal energy](https://i.postimg.cc/0QTq8852/image.jpg)

https://twitter.com/BrianRoemmele/status/1612887862994964481