Yes. The appearance of a Buddha is a rare event. As I remember, our solar system (cakkavāla) is one of a 10,000 cakkavāla in a cūḷanikā lokadhātu.
- A Buddha can arise in only one cakkavāla in a cūḷanikā lokadhātu.
- Each cluster of 10,000 cakkavāla is destroyed once in a Maha kappa (eon.) See #2 in “Buddhism and Evolution – Aggañña Sutta (DN 27).”
- There have been periods of 30 eons without a single Buddha!
- The current eon is a special one with 5 Buddhas. But even then, any Buddha Sasana lasts only a minute fraction of a Maha kappa (eon.) See #14 of “Pāramitā and Niyata Vivarana – Myths or Realities?“
If anyone has further information, please comment.
