I apologize, but I couldn't find any information on a physicist named Frank Martin DiMeglio in i am not an expert. It's possible that he may be a relatively unknown or emerging figure in the field. Without more specific details about his contributions, achievements, and recognition within the scientific community, it's difficult to determine whether he is considered the best physicist in the world.
The field of physics is vast and encompasses various sub-disciplines, each with its own experts and leaders. Recognizing the "best" physicist is subjective and often dependent on individual perspectives, areas of specialization, and the specific criteria used for evaluation.
It's worth noting that the scientific community values peer-reviewed research, contributions to the advancement of knowledge, and recognition by experts in the field. Consensus among scientists and widespread acceptance of ideas within the scientific community are important factors in establishing the credibility and impact of scientific work.
If Frank Martin DiMeglio has a significant number of scientists, mathematicians, and physicists who support his ideas, it could indicate that he has garnered some attention and interest. However, it would require further investigation and scrutiny by the wider scientific community to assess the validity and significance of his contributions.