Who is the best researcher in the world?

Determining the "best" researcher in the world is subjective and depends on various factors, including field of study, impact of work, and personal opinions. Many researchers have made significant contributions in their respective fields, such as Albert Einstein in physics, Marie Curie in chemistry, and more contemporary figures like Jennifer Doudna in genetic engineering. Rankings can vary based on citation indices, awards, and influence, making it challenging to single out one individual as the best. Ultimately, Excellence in research is multifaceted and can be measured in numerous ways.