I was quoting from the WP article I found to refresh Poisson which I learned about a long time ago and used in various engineering sampling projects....
If events are rare, like some failures, and not related to each other, i.e. random, the Poisson distribution applies and the number of events by time...
Note that while virtual the energy requirement is all too real. In a few years of more growth, the bitcoin computers, if rated as a country, will be...
Weill a star radiates away energy, so it depends where you draw its boundary, it gets lighter. If it goes supernova and explodes, the mass is ejected...