Of course this is speculative in nature, but there's nothing wrong with informed speculation. Sometimes, if it happens to be at least on the right track, it can help us discover new pieces of evidence. It's not speculative to say that information about UFOs and nuclear technology are both very secretive. It's not a new idea that nuclear technology is related to UFOs. It is, however, a newer idea that there could be implications to the fields of cosmology and general human progress. Weinstein is perhaps the most notable current figure to suggest intentional dysfunction within physics communities in order to cover up technological progress and keep the entire field of physics dormant for decades. Weinstein typically illustrates this idea through the lens of the dominance and failures of String Theory. I believe it's possible to do the same through the lens of cosmology.

In cosmology, the steady-state model or steady state theory is an alternative to the Big Bang theory. In the steady-state model, the density of matter in the expanding universe remains unchanged due to a continuous creation of matter, thus adhering to the perfect cosmological principle, a principle that says that the observable universe is always the same at any time and any place.

From the 1940s to the 1960s, the astrophysical community was divided between supporters of the Big Bang theory and supporters of the steady-state theory. The steady-state model is now rejected by most cosmologists, astrophysicists, and astronomers. I could go into more detail about when and why this happened, but it's not pertinent at the moment.

However, if you understand the arguments made by Eric Weinstein about the current state of academia you should understand that you should be skeptical of the "consensus" among certain academic circles because they have demonstrated that they are not acting rationally nor scientifically despite their prestigious status and backgrounds. Diversity of ideas is not encouraged to put it lightly.

Hannes Alfvén and Cosmology

Opposition to the Big Bang theory was very small by the 1970's with its most prestigious detractors being from the plasma physics community. Plasma cosmology is a non-standard cosmology whose central postulate is that the dynamics of ionized gases and plasmas play important, if not dominant, roles in the physics of the universe at interstellar and intergalactic scales. In contrast, the current observations and models of cosmologists and astrophysicists explain the formation, development, and evolution of large-scale structures as dominated by gravity (including its formulation in Albert Einstein's general theory of relativity).

The original form of the theory, Alfvén–Klein cosmology, was developed by Hannes Alfvén and Oskar Klein in the 1960s and 1970s, and holds that matter and antimatter exist in equal quantities at very large scales, that the universe is eternal rather than bounded in time by the Big Bang, and that the expansion of the observable universe is caused by annihilation between matter and antimatter rather than a mechanism like cosmic inflation.

Hannes Alfvén was a Swedish electrical engineer, plasma physicist and winner of the 1970 Nobel Prize in Physics for his work on magnetohydrodynamics (MHD). He described the class of MHD waves now known as Alfvén waves. He was originally trained as an electrical power engineer and later moved to research and teaching in the fields of plasma physics and electrical engineering. Alfvén made many contributions to plasma physics, including theories describing the behavior of aurorae, the Van Allen radiation belts, the effect of magnetic storms on the Earth's magnetic field, the terrestrial magnetosphere, and the dynamics of plasmas in the Milky Way galaxy.

In 1937, Alfvén argued that if plasma pervaded the universe, it could then carry electric currents capable of generating a galactic magnetic field. After winning the Nobel Prize for his works in magnetohydrodynamics, he emphasized that:

His theoretical work on field-aligned electric currents in the aurora (based on earlier work by Kristian Birkeland) was confirmed in 1967, these currents now being known as Birkeland currents.

British scientist Sydney Chapman was a strong critic of Alfvén. Many physicists regarded Alfvén as espousing unorthodox opinions.  R. H. Stuewer noting that "… he remained an embittered outsider, winning little respect from other scientists even after he received the Nobel Prize…" and was often forced to publish his papers in obscure journals. Alfvén recalled:

"When I describe [plasma phenomena] according to this formalism most referees do not understand what I say and turn down my papers. With the referee system which rules US science today, this means that my papers are rarely accepted by the leading US journals."

Alfvén waves (low frequency hydromagnetic plasma oscillations) are named in his honor and propagate at the Alfvén speed. Many of his theories about the solar system were verified as late as the 1980s through external measurements of cometary and planetary magnetospheres. However, Alfvén himself noted that astrophysical textbooks poorly represented known plasma phenomena:

Alfvén reported that of 17 of the most used textbooks on astrophysics, none mention the pinch effect, none mentioned critical ionization velocity, only two mentioned circuits, and three mentioned double layers.

Alfvén believed the problem with the Big Bang was that astrophysicists tried to extrapolate the origin of the universe from mathematical theories developed on the blackboard, rather than starting from known observable phenomena. He also considered the Big Bang to be a myth devised to explain creation.

Fast forward to the early 2000's and opposition to the Big Bang theory began to resurge due to increasing issues with the theory. By the 2020's a strong case could now be made that something is seriously wrong with the current standard model of cosmology and I've written extensively about it in The Emperor Has No Cloths. More recently, some data has come out that not only continues to disagree with the standard model, but apparently matches one of Alfvéns predictions related to antiparticles.

Nuclear Secrets

How does this all potentially spill over to nuclear secrets? Well, it turns out that your cosmological model dictates your nuclear models. A perfect example being fusion energy research. Plasma physics dominates most fusion energy research. It turns out that a cosmology that supports plasma being the most dominate principle becomes useful if plasma phenomena scales well from the micro to the astronomical, which we have observed it does for at least 14 orders of magnitude. This means you can study galactic phenomena as a way to help you understand energetic phenomena on Earth and in the lab. So, if you have a nuclear technology secret one way to limit others from discovering it independently is to encourage an incorrect and limiting cosmology within academia as well as as much brain drain within the field of plasma physics as possible. It appears that this isn't a crazy notion if you simply look into these fields. Alfven himself reported on the academic journals and textbooks ignoring key concepts and blocking publication during his time.

UFO Secrets

How does this all potentially spill over to UFO secrets? Well, it turns out that the physics of energy and propulsion is also dominated by plasma physics. The questions of inertia and gravity also change dramatically under a cosmological model where plasma physics is the dominant principle. The question of time also changes under a cosmological model where the Universe has no beginning in time. It simply always was. One of the elegant features of the Steady State theory is that because the Universe is infinitely old the question of its origin doesn’t arise. It has always existed. This then changes the Drake Equation to suggest the odds of life elsewhere is practically guaranteed. The implications of switching cosmological models are profound. It affects all advanced technologies and concepts.

Supporting Evidence

I'm going to offer supporting evidence by pointing out some very odd connections between certain people and institutions. It's admittedly circumstantial, but worth looking into. Let's look at "An Open Letter to the Scientific Community" (published in New Scientist in May 2004) that critiques the "growing number of hypothetical entities in the big bang theory". The letter states that plasma cosmology, the steady-state model and other alternative approaches can also explain the basic phenomena of the cosmos. But more importantly, look at who signed the letter and who those people are associated with. Notice these are not the resumes of pseudo scientists and many on the list are physicists involved in nuclear technology, government, military, and space technology including national labs, Nevada Test Site, DOE, BAE, and NASA just to name a few.

Anthony L. Peratt is an American physicist whose most notable achievements have been in plasma physics, plasma petroglyphs, nuclear fusion and the monitoring of nuclear weapons. He worked at the Lawrence Livermore National Laboratory between 1972 and 1979, during which time he held the position of a Guest Physicist at the Max Planck Institute for Physics and Astrophysics at Garching, near Munich, from 1975 to 1977. From 1981 to the present he has worked at the Los Alamos National Laboratory, serving in the Applied Theoretical Physics Division. He had a sabbatical in 1985 as guest scientist at the Alfvén Laboratory of the Royal Institute of Technology in Stockholm. He led the N-Tunnel Diagnostics Program for Los Alamos at the Nevada Test Site nuclear testing ground from 1991 to 1993, when he became leader of the American inspection team for the Russian Arctic nuclear test site at Novaya Zemlya. Peratt was seconded as a scientific advisor to the United States Department of Energy (USDOE) from 1995 to 1999. Whilst working for the USDOE he was the acting director, National Security, Nuclear Non Proliferation Directorate in 1998. (I'd like to point out that Pharis Williams, although he didn't sign this open letter, has openly stated he does not support the Big Bang theory. Williams is a former Q clearance nuclear physicist that worked at LANL and is connected to the UFO subject via Robert Bigelow, Oke Shannon, and John Alexander.)

Ari Brynjolfsson graduated from Menntaskólinn á Akureyri in 1948, then studied nuclear physics at the Niels Bohr Institute, University of Copenhagen, Denmark, from 1948 to 1954, gaining his PhD, with a thesis which dealt with a device he had constructed for accurately measuring magnetism in rocks. Following this he became a special research fellow of the University of Iceland from 1954 to 1955, then an Alexander von Humboldt fellow of the University of Göttingen, Germany, from 1955 to 1957. While at Göttingen he contributed important work in magnetic moments, using a self-devised instrument with which he and others provided the strongest evidence to that date for magnetic field reversals. He became Head of Radiation Facilities for the Danish government at Risø (1957–1965) and then Head of US Army Radiation Facilities, Natick, Massachusetts (1965–1980). He also served as the Director of IFFIT (International Facility for Food Irradiation Technology) of the Joint FAO/IAEA, United Nations (1988–1992). He gained his DSc in 1973 with a thesis entitled Some Aspects of the Interactions of Fast Charged Particles with Matter which led to his work on plasma redshift.

Dr. Timothy E. Eastman is a prominent figure in the field of space physics and plasma science. He is a consultant at Plasmas International and concurrently serves as a group manager for science support at NASA’s Goddard Space Flight Center. With over 30 years of experience, Dr. Eastman has made significant contributions to space plasma physics, including the discovery of the Low-Latitude Boundary Layer (LLBL) of the Earth’s magnetosphere and gyro-phase bunched ions in space plasmas. He has published over 100 research papers and has been involved in key international and interagency projects, such as the International Solar Terrestrial Physics program and the Interagency Space Weather Program. Additionally, Dr. Eastman has a strong interest in the philosophy of science and has edited volumes on the subject.

Michael Ibison is a researcher at the Institute for Advanced Studies at Austin, which is part of EarthTech International, Inc. (Yes, with Puthoff and Davis.) This institute focuses on pioneering research in next-generation science and technology, including fundamental physics, engineering, and life sciences. Ibison has contributed to various fields, including quantum physics and cosmology. For example, he co-authored a paper on quantum retrocausation and has worked on the thermalization of starlight in steady-state cosmology. His resume states he has left EarthTech recently to work for Qualcomm.

Jerry W. Jensen of ATK Propulsion a division of Alliant Techsystems (ATK). ATK is known for its work in aerospace and defense, particularly in propulsion systems which works with the US Navy.

Gregory Meholic, The Aerospace Corporation. The Aerospace Corporation is an American nonprofit corporation that operates a federally funded research and development center (FFRDC) in El Segundo, California. The corporation provides technical guidance and advice on all aspects of space missions to military, civil, and commercial customers. As the FFRDC for national-security space, Aerospace works closely with organizations such as the United States Space Force (USSF) and the National Reconnaissance Office (NRO) to provide "objective technical analyses and assessments for space programs that serve the national interest". Although the USSF and NRO are the primary customers, Aerospace also performs work for civil agencies such as NASA and NOAA as well as international organizations and governments in the national interest.

I can't actually do everyone on the list, but you get the point.