Throughout my life I've heard rumors of people who invented 100 MPG carburetors, or other types of devices which would radically improve efficiency, or allow for freedom from the petrochemical supply chain, or power grid. There are obvious problems with any devices which actually claim to produce more power out than in, but there can be systems which actually do it by a yet undiscovered mechanism.

For example, the carbon capture threads in the past two weeks seem to be over-unity, but in an obscure way. I suspect the ultrasound and silver nanorods floating it gallium might be involved in some form of sonoluminescent fusion events, the energy of which is captured in the splitting of CO2 back into carbon and oxygen.

I suspect that because the world is actually starting to die off due to the gigatons of CO2 we've dumped into the atmosphere, this (the Carbon capture/gallium thing) might be a trial balloon by the group that controls these technologies, having hoovered them up across the past century, to see how they can keep profits while slowly letting their dependence on fossil fuel profits give way.

I'd give that a 50/50 chance of reflecting reality. If true, the future will get better. If I'm wrong, and it's a fun tale to tell at parties as the world burns.