[mikeyouse]

Another point though, the CTO of Ubeam had a MS in nuclear engineering from MIT and was a deputy director of innovation at Raytheon -- I expect he knows a bit of physics too. Their VP of Engineering has a PhD in acoustics and they employ other specialist PhD electrical engineers..

I appreciate a good 'take-down' as much as the next person but I don't think it's as clear cut as the napkin-math suggests.

[boomshucka]

You are likely right, it probably isn't clear cut. But if there is a response to his discussion of physics, it should be around physics, not the fact that he is a "doubter". The world would be in an awful place without any "doubters".