Originally Posted by dera

You know you would probably win a Nobel prize for that spreadsheet, unless your timescale is like 5 years or so.
Too many moving targets and shifting goalposts in that equation to make a meaningful determination on future earnings. Things like, right now AA G4 CA is let's say 30 years. It likely will drop to half in the next few years. Route structures, fleet composition, salary expectations etc. Too complicated to make any sort of meaningful estimations on what your career would be like for the next 20 or so years. 2 years ago, Spirit/Frontier etc spreadsheets would have looked completely different than what they do today.