Earlier quoted context omitted.
No, because a "winner take all" industry is one that trends towards monopoly, that's not the same thing. No one person will ever have the entire video game pie. "Superstar industries" follow extreme power law distributions, where, due to the low barrier to entry, high ceilings, and limited consumer base (there are only so many hours people can spend on entertainment), the pie isn't growing and new entrants aren't goi…
Adele? Nearest example I can think of, mySpace was where she got noticed so that dates her breakthrough to a good decade ago. Adele was legitimate however others have pretended to have an Adele grade story. Lily Allen also claimed to have been discovered on mySpace but her dad was rock and roll celebrity so her efforts can be dismissed as nepotism. Often these links to rock and roll celebrity are not obvious because…
Being really good and self publishing helps you build your resume in a superstar industry, but it's nearly impossible to actually achieve commercial success without a well-established sponsor. Adele probably wouldn't have gotten far on her own if XL or some other label hadn't picked her up. Her accomplishment before then was a really good resume.