I commented a few months back on "The Thermionic Revolution", a proposal/invention by Philip Hardcastle for a kind of rotating device wherein the rotation enhances the efficiency of the emission process.  Mr. Hardcastle was not happy with my skeptical comments and I promised him I would post a link to his updated website.

Well, today his website is offline.  This, at least, I do understand:  keeping a website online and running properly can be tricky sometimes.

My initial comments went beyond skepticism about violations of the laws of thermodynamics, however, and by implication at least impugned  his motives.  I ought not have done that.  Mr. Hardcastle seems sincere.  I'm remain skeptical that he or anyone else can beat the laws of thermodynamics.   That's just one of my biases.  But he seems to believe his ideas can genuinely benefit humanity.  I hope so too.  But wishing doesn't make it so and is not a good basis for a plan of action.