Don't get me wrong, I'm not saying that no one else is capable of writing a book, but it's the way these particular people say it. Flippantly, like it's the easiest thing in the world to do. As though the only reason they are not best selling authors right now is because they've never bothered to put it on their Saturday 'to do' list. Because it's just that easy to crank off an amazing, relevant novel in a few weekends.
Now, this annoys me because it devalues all the really hard work that goes into writing. It isn't easy. It takes a tremendous amount of time. Years of research and planning. Years of sitting at a computer or notepad. Reading and re-reading and writing and re-writing. Even after all that time and effort sometimes it's still crap. Once it's "finished" then it gets picked over by friends and family and critique partners. Then it gets re-written again, maybe two or three more times. If you get an agent and an editor then it gets picked over by them as well and they will go through line by line and edit every single word.
It does get easier. You learn from past mistakes. You avoid the over writing and cliches that you spent so much time fixing on your first manuscript. Seasoned writers can pump out books much faster than the beginner, but that's after they spent the first years of their careers doing all of the above. But I assure you that just because Stephen King can write a book in a few months doesn't mean that Sally hairdresser or Larry plumber can write the next great American story while on 3 weeks vacation.
And before all that. Before you put a single word to paper, you have to have a really good premise. No one wants to read your thinly veiled memoir of a C student who over comes a drunk dad, moves to the city and gets an accounting degree.
So, for all the people who have said, "Oh ya, I want to write a book one day too", please listen. You are not going to sit down and write a book one day when the mood strikes you, any more than you are going to sit down at the piano for the first time ever and play Mozart. When you say shit like that it is an insult to all the real writers out there who have sunk years of their lives and great big chunks of their hearts and souls into their work, so please stop. You sound like an asshole.