Fusion? With almost zero energy cost? Is it possible?

[SSSnail]

While flipping between different useless videos, I found this http://www.wimp.com/collapsebubble/. If it is true, that's just simply amazing.

Perhaps one of these days I'd trade my internal combustion engine in for one of these bubbles mobile while listening to my favorite tunes...

 

[Crono]

"In February 2005 the documentary series Horizon commissioned two leading sonoluminescence researchers, Seth Putterman and Kenneth S. Suslick, to reproduce Taleyarkhan's work. Using similar acoustic parameters, deuterated acetone, similar bubble nucleation, and a much more sophisticated neutron detection device, the researchers could find no evidence of a fusion reaction"

https://en.wikipedia.org/wiki/Bubble_fusion

Basically you need to watch the rest of that documentary.
Even if fusion is taking place, how much energy does it require to generate a practical amount of energy?
There are other theories, anyway, but I haven't investgated them myself nor do I claim to have an extensive background in physics or chemistry:

"The mechanism of the phenomenon of sonoluminescence remains unsettled. Theories include: hotspot, bremsstrahlung radiation, collision-induced radiation and corona discharges, nonclassical light, proton tunneling, electrodynamic jets and fractoluminescent jets (now largely discredited due to contrary experimental evidence)."

 

[Murloc]

lots of pop science and conspiracy theories enter the discussion about these things so I think it's useless to talk about them, they don't exist now and you're not a physicist doing research in that field, so why should you care about it apart from knowing it's an existing theory?

 

[halik]

That documentary was annoying; wtf was the cut to an opera singer and a wine glass?

 

[Matthiasa]

Fusion is fairly low energy up until the point one feels like controlling it.