"Speculated" Natural Recordings by Native Speakers
verb: to form or express an idea or explanation that is not based on fact or direct evidence, but on guesswork or hypotheses.
Example: "Several people have speculated that the company will make a profit next year."
A spectroscopist is a scientist who studies the interaction between matter and electromagnetic radiation, such as light, to determine the composition and properties of materials. Spectroscopists use various techniques, including spectroscopy, to analyze the characteristics of objects, substances, or phenomenon and interpret the light or other forms of electromagnetic radiation that is emitted or absorbed by them.