Is the Cosmological Coincidence a Problem?

Understand

The matching of our epoch of existence with the approximate equality of dark energy and dark matter energy densities is an apparent further fine-tuning, beyond the already troubling 120 orders of magnitude that separate dark energy from the Planck scale.

• In this paper I will argue that the coincidence is not a fine-tuning problem, but instead an artifact of anthropic selection.
• Rather than assuming measurements are equally likely in all epochs, one should insist that measurements of a quantity be typical amongst all such measurements.
• As a consequence, particular observations will reflect the epoch in which they are most easily made.