Wow, an entire article about Andrea Rossi, without ever mentioning him by name! I wonder what the old con man is up to these days, anyway.
I remember having to figure out the flaws in some of these “perpetual motion” devices in physics class. There is always some fundamental principle being overlooked. It’s like my son says, “Gravity isn’t just a good idea, it’s the law!”
They've all failed due to damaging irradiation of the containment vessels and even structural supports.
Without more advanced knowledge of physics than we have now, controlled hot fusion for generation of useful power is just magical thinking.