Two things: * Don't work in power-law / winner-take-all industries, unless you are truly remarkable (and even then, you need a lot of luck). Entertainment is the most obvious example of such an industry. * No shit talent exists. Just look at basketball players. Presumably nobody thinks Wemby is 7'5" because he just trained harder at growing tall than anyone else? Why would any other characteristic be different?
> Entertainment is the most obvious example of such an industry. Is it? Consider the case of nepo babies: often no extreme talent (or perhaps any at all), yet extreme luck.
For pop stars you need to have some combination of the right look and ability to perform. Ed Sheeran looks a bit like a muppet but seems to be very good at creating catchy songs. Taylor Swift, to me at least, isn't that good at catchy tunes but she has the look and lives the life style. I imagine there are aspects of personality that are not as obvious but very important to survive in the industry.