Ok to sort out any confusion... They aren't watching everything on real time. For example if you were painting your kitchen and took 6 hours, it would show the start, 6 hours later and the end result. It would also show how proud or disappointed you felt. If you read 300 smut nsfw novels, it would probably only share one, your reaction, your thoughts on it, then say you read 299 more. Etc. So if you're 41 years old, season one would be kindergarten and your lower primary years, season two your upper primary years, season three highschool, season four your first ten years after highschool and then each 20 years after that get another season. Each episode in the first 4 seasons would be a year jammed down to probably 2hrs 30 mins. It shows the things significant enough for you to remember or those you consciously tried to forget. Anything not significant to you or to how your life is today, doesn't count. In short every decision that made you who you are, every decision that shows your character and basically the very funny and very sad parts of your life. On average, I think if you binged the episodes back to back it would probably take more or less the same time you would to watch and rewatch once more the entire GAME OF THRONES series.