The two most important “cultures” in the field of quantum gravity are the relativists and the particle physicists.
The assumption is that the relativists consider the Einsteinian tradition of classical general relativistic theories to be more important and want to add the quantum features as a detail while the particle physicists build on quantum field theory –that’s been very useful to describe particle physics– and want to properly add gravity to it.
Maybe professional physicists will eventually realize that there is no need to add gravity to anything. Force was invented by Newton to justify his religious belief in atomic materialism. Two hundred years after Newton’s invention of force it was still not observed or measured in a properly designed experiment. Instead of dropping force and accept that nature is not forceful physicists defined the Cavendish experiment conducted a century earlier to compute the mean density of the earth to be the first official measurement of the Newtonian occult force. This must count as one of the greatest scientific frauds perpetuated by physicists to save Newton’s authority.
About a century later physicists finally, as the result of the efforts of a semi-outsider, Einstein, conceded that force was occult, unphysical and most of all unnecessary.
At this point any scientist would have eliminated force from physics. But physicists are not scientists. Physicists are slaves of the profession. Physicists are powerless to change any physics dogma. Any professional physicists doubting a Newtonian tenet will be called a crackpot and his career will end.
So what physicists do? They keep force with the excuse that it is pedagogical only. But no. In truth physicists still believe by faith to Newtonian atomic materialism and Newtonian force.
So Lubos Motl’s observation is correct. Take a look at this talk by Nobelist Frank Wilczek. He is a particle physicist. For him nature is made of indivisible atomic matter. This dogma, invented by Newton, because, he said he got word from God that he created an atomic materialist word, still persists in physics because physicists, even Nobelists like Wilczek, fail to question it. The physics indoctrination called physics education does not allow them to question the most sacred of all sacred Newtonian dogma. A physicist who will dare to question the atomic materialist dogma of Newtonism will be no different than a Catholic priest who dares to question transsubstantition.
Physics is based on Newton’s religious preferences. Physicists as Newton’s disciples are indoctrinated in Newtonian temples called physics departments. They get to brag that they are not Newtonians because they also believe in General Relativity. Even General Relativity is a Newtonian theory. General Relativty is a Newtonian theory that physicists use to speculate about space, time and spacetime and cosmos in the unreacheable past and future and inherently unmeasurable and unobservable. When they need to compute actual orbits they revert to Newtonian mechanics. What they call Newtonian mechanics is Kepler’s rule branded as Newton’s laws.
All these prove that physics is a religious and political brotherhood who owns brands such as space, time, spacetime, Newtonian mechanics, General Relativity. This Newtonian monopoly on human reason has had devastating effects on our understanding of nature. We are bound by physicists’ Newtonian doctrines leftover from the 18th century. Physicists still study a celestial mechanics last designed by Lagrange or Laplace. The celestial mechanics used by NASA is different.
So if as an independent researcher trying to investigate concepts owned by physics we have no luck. Physicists built a $6 billion machine to verify once again their Newtonian doctrine that of atomic materialism. It doesn’t even occur to them that matter and force do not exist. They are Newton’s religious inventions. Physics experiments have been telling physicists as such. Experiments are telling, are yelling, at physicists, “MATTER DOES NOT EXIST!” What do physicists do? You would expect that they would hear nature’s cries and say maybe nature knows better, let us ask “Does matter exist?” Let’s design an experiment to test if matter exists?”
No. Instead, physicists do the same thing they did with force. They keep the established Newtonian dogma at whatever cost, and invent a notion of “matterless matter.” They won’t drop the concept of matter. Physicists will define instead a new type of matter: Matterless matter.
So if you are an independent researcher investigating matter what would you do?