There is a range of viewpoints among physicists regarding quantum tunneling and its applicability to macroscopic objects. Quantum tunneling is a phenomenon in which a particle can penetrate a potential barrier even when its energy is lower than the height of the barrier. This effect is a consequence of the wave-like nature of particles described by quantum mechanics.
In the context of macroscopic objects, such as everyday objects in our observable world, quantum tunneling is typically considered highly improbable. The reason is that macroscopic objects consist of a large number of particles, and the collective behavior of these particles gives rise to classical physics and emergent properties. Quantum effects are generally believed to be negligible at the macroscopic scale due to the process of decoherence, in which quantum superpositions and interference effects are rapidly lost as a result of interactions with the environment.
While most physicists agree that macroscopic objects do not typically exhibit quantum tunneling effects, there may be some dissenting viewpoints or alternative interpretations. Physics is a field of ongoing exploration and debate, and different researchers may hold differing opinions based on their theoretical frameworks or experimental results.
It's worth noting that even though quantum tunneling is not typically observed at the macroscopic level, quantum mechanics remains essential for understanding the behavior of subatomic particles and their interactions. The theory of quantum mechanics has been extensively tested and verified through numerous experiments, and its predictions have been highly successful in describing the microscopic world.
In summary, the prevailing view among physicists is that quantum tunneling is primarily observed at the subatomic level, and macroscopic objects are unlikely to exhibit such effects. However, it is important to acknowledge that different perspectives may exist within the scientific community, and the study of quantum phenomena in macroscopic systems is an area of ongoing research and exploration.