I think it’s fair to apply the “smell test” in this case.
We’ve recently see several high profile collapses of fraudulent companies like Nikola and Theranos that claimed to have miraculous technology breakthroughs.
Nikola claimed to have solve problems in hydrogen synthesis, transportation, fueling, electricity generation, engine miniaturization, and more. They didn’t have a piece of that technological chain and yet made some incredibly bold claims so they could continue inflating the hype around the company and skyrocket its valuation.
I’m not saying Helion is in the same boat as Nikola but it’s fair to be skeptical.