Higher field densities are not required....
http://www.physicstoday.org/daily_edition/physics_update/water_s_response_to_ultralow_magnetic_fields_comes_as_a_surprise
"Stefan Hartwig, Martin Burghoff, and colleagues at the National Metrology Institute of Germany have now discovered that in fields of 1 µT and lower, water responds to a magnetic perturbation even faster still. To see the increased relaxation rates, they had to measure water’s magnetization in fields less than 1/500 the intensity of Earth’s geomagnetic field—a feat made possible in part by a superconducting quantum interference device. Hartwig and company haven’t yet pinpointed the detailed mechanism underlying the fast spin dynamics, but they suspect that coupling between H+ and 17O nuclei plays a role."
2. You seem to conveniently forget or knowingly exclude the magnetic field depletion from the "fuel" magnets that are constantly moving through powerful magnetic fields. These magnets will decay their power orders of magnitude faster than your perfectly aligned solar magnetosphere resonating positive feedback field increase. Do you understand this?
I understand this, but I disagree that this is the root source of any unexplained energies. The breakdown of the magnets is certainly a drop in the potential energy of the magnet, but there is no explaination as to how the slow collapse of the magnetic field can transfer it's energy to the momentum of the device in a net positive way. The individual molecules are equally likely to dump their magnetic energy in a net negative way, simply because when the molecules lose their magnetic alignment with the field, they can lose it in any direction whatever. Said another way, the failure of the individual molecules that comprise the magnet are just as likely to oppose the overall flow of energy of the device as to contribute to it, and there is no way to bias the process in favor of the desired flow.
3. Supercooled materials, or even a supercooled machine of similar design COULD work at close to 100% efficiency, but certainly not over, again, same reasons as above. A non over-unity machine is useless, and maintaining supercooled temperatures requires significant power. It's useful if you want to transmit power over long distances, but this use scenario is not profitable.
What use scenario are you referring to? I offered a general explaination as to why we we will never see horizontal maglev flywheels used as storage devices for electric vehicles. I never claimed that this effect was large enough to develop an over-parity "free energy" type of device. I did imply that, should this ever be accomplished, men in black suits are going to kick the inventors' doors down and they are going to fully understand the term "extralegal enforcement".