I donât know the history of the term or its relationship to Copernicus, but I can say how my forgotten source defined it. Suppose you want to ask, âHow long will my car run?â Suppose itâs a weird car that has a different engine and manufacturer than other cars, so those cars arenât much help. One place you could start is with how long itâs currently be running for. This is based on the prior that youâre observing it on average halfway through its life. If itâs been running for 6 months so far, you would guess 1 year. There surely exists a more rigorous definition than this, but thatâs the gist.
I donât know the history of the term or its relationship to Copernicus, but I can say how my forgotten source defined it. Suppose you want to ask, âHow long will my car run?â Suppose itâs a weird car that has a different engine and manufacturer than other cars, so those cars arenât much help. One place you could start is with how long itâs currently be running for. This is based on the prior that youâre observing it on average halfway through its life. If itâs been running for 6 months so far, you would guess 1 year. There surely exists a more rigorous definition than this, but thatâs the gist.