Cosmic clocks refer to the phenomenon of using cosmic objects such as pulsars, galaxies, and quasars to measure time on a cosmic scale. These objects have very stable and predictable behaviors that can be used to track the passage of time over billions of years.
Cosmic variance is the inherent randomness and uncertainty in the distribution of matter and energy in the universe. This can affect our observations and measurements of the universe, leading to variations in the data we collect. It is important to account for cosmic variance in order to accurately interpret and understand the true nature of the universe.
Cosmic averages are statistical quantities that represent the overall properties of the universe, such as the average density or expansion rate. These averages are determined by analyzing large-scale surveys and observations of the universe, taking into account cosmic variance and other factors that may affect the data.
Wiltshire's work on cosmic clocks and cosmic averages provides a new way of studying the distribution of matter and energy in the universe, which can help us better understand the role of dark energy and dark matter in the universe. By accurately measuring cosmic averages and accounting for cosmic variance, we can gain insights into the nature of these mysterious components of the universe.
The study of cosmic clocks and cosmic averages has the potential to improve our understanding of the fundamental laws of physics, the evolution of the universe, and the nature of dark energy and dark matter. This could also have practical applications in fields such as astronomy, cosmology, and space exploration, as well as providing a deeper understanding of our place in the universe.