Context: Time has long been a major subject of study in religion, philosophy, and science, but defining it in a manner applicable to all fields without circularity has consistently eluded scholars. Nevertheless, diverse fields such as business, industry, sports, the sciences, and the performing arts all incorporate some notion of time into their respective measuring systems. Some simple definitions of time include "time is what clocks measure", which is a problematically vague and self-referential definition that utilizes the device used to measure the subject as the definition of the subject, and "time is what keeps everything from happening at once", which is without substantive meaning in the absence of the definition of simultaneity in the context of the limitations of human sensation, observation of events, and the perception of such events.

Question: Time has long been a major point of study in which fields?
Answer: religion, philosophy, and science

Question: Fields such as business, industry, sports, science, and performing arts incorporate some notion of what into their measuring systems?
Answer: time

Question: What is an example of a simple definition of time?
Answer: time is what clocks measure

Question: Which three fields usually support performing arts?
Answer: Unanswerable

Question: What fields use measuring systems to check the weight of their products?
Answer: Unanswerable

Question: What does having rules in sports usually prevent?
Answer: Unanswerable

Question: What does science use to test a hypothesis?
Answer: Unanswerable

Question: What do athletes need to use to be aware of where their teammates are in a game?
Answer: Unanswerable

Question: Fields such as business, industry, sports, science, and performing arts incorporate some notion of what into their clocks?
Answer: Unanswerable

Question: What keeps everything from happening at different times?
Answer: Unanswerable

Question: What fields incorporate some notion of clocks into their measuring system?
Answer: Unanswerable

Question: What has long been a major subject of study in human sensation?
Answer: Unanswerable

Question: What does time measure?
Answer: Unanswerable