Earlier quoted context omitted.
>Yes, you are. You just tell yourself that you are not. Eeesh. Any able-bodied person can walk a marathon, given sufficient motivation. You might be able to run parts of it, but you can't run a marathon through sheer force of will if you haven't done the training. A book is technically just a bunch of bound pages, so anyone can write one in the loosest sense of the word. I can just type the word "beige" 80,000 times…
I think "if you haven't done the training" is the operative phrase. Similarly nobody could write a novel if they hadn't learned to write, or read enough, etc. If a healthy person wants to run a marathon they will be able to by a process of training. The original metaphor is a bit off. Anyone who puts in the effort could write fifty thousand words on the same theme or plot. Likewise anyone could complete a marathon wi…
It's not merely a case of writing something that someone would pay to read, but writing something that someone would read at all. That's a considerably lower hurdle, but one that many authors never vault. Every day, the slush piles of publishers swell with lovingly-crafted novels that will, in all likelihood, never be read by anyone.
The parallel I might draw is with a singer so dreadfully tone deaf that their neighbours lodge a complaint, or a comedian so bad that they are booed off stage at an open-mic night. Most first-time novelists are precisely that awful - their work is not merely of insufficient quality to attract a paying audience, but actively repellent. Few budding authors are prepared for that level of disappointment.