Neutrinos are interesting.
We may well be awash in them, and totally unaware.
I think they're not quite physical and not quite metaphysical. What Einstein called "....playing dice with the universe.." and Carl Jung called "synchronicity". Einstein was hung up on electomagnetism, probably imprinted from childhood experiences in his Dad's electromagnet factory.
Try googling "neutrino sea".
from an article by H.C. Dudley, Ph.D. in The Psychic Observer, January-March 1978:
The Neutrino Sea
by H.C. Dudley, Ph.D.
"The term ETHER appeared in textbooks of physics to as late as 1932, postulating the existence of some, undefinable mechanism for the transmission of heat, light, magnetism and radio signals, all of which may be accomplished in a perfect vacuum.
It was stated "It appears wise to continue to use the word ETHER, at least denoting the power of space, vacant or occupied by matter, to transmit radiation." Particularly note the words "vacant or occupied by matter. It is this 45-year-old quotation that forms the basis for this paper..."
"The modern development of an ether concept began in 1951 when Dirac, (Nobel laureate in theorectical physics, 1933) posed the question, "Is there an Ether?" as the title of a paper. He answered in the affirmative, developing the concept of an essentially-isotropic sea of electrons in random motion. Debroglie (Nobel laureate in theorectical physics, 1929) postulated a "subquantic medium" in 1959. Later he characterized this medium "as a gas made up of leptons and probably neutrinos."
During the past decade there has been developing in astrophysics the concept of a generalized "neutrino sea." This flux of uncharged particles arises from the nuclear reactions in the myriad of nearly randomly-distributed stars. This subject is extensively reviewed in the "Cosmic Neutrino" by B. Kuclowicz.
The "subquantic medium" or "neutrino sea" has been defined as an energy-rich substrate, the common denomination in all particle reactions..."
(Note: The author cites energy density estimates for the neutrino sea as high as
10,000,000,000,000,000,000 electron volts per cubic centimeter, with a particle
density of approximately 1,000,000,000,000 particles per cubic centimeter.)
"Therefore, it is suggested that the technology resulting from reorganization of our thinking with respect to the energy-rich particulate flux in which we exist will lead to many practical developments. Among these is electrical power transmission, with power losses approaching zero, at more manageable temperatures that at present."
I'm skeptical of that last sentence.
Asimov's book "The Neutino" is a good introduction. His "The Gods Themselves" explainss there's no free lunch.
Cogito ergo doleo.