[DavidPiper]

The answer is almost always personal support / personal assistants.

There are for sure ways to increase your own personal productivity on its own, but the extra kick is usually from in-house cooks, cleaners, shoppers, schedulers, stylists, PAs, etc.

These people may or may not be spouses, family, friends and so on.

(This is a general response, I do not know Simon Willison or any of his work or life.)

[simonw]

I wish I had a personal staff like that!

We do have a couple of hours of cleaning help once a week but other than that my partner and I split the chores.

[DavidPiper]

Thank you for replying! In retrospect I would like to have framed my comment less like I was speaking on your behalf, sorry about that.

[idamantium]

Sometimes, sure this is the case. I know a few big time artists who have dedicated teams that are always behind the scenes. But plenty of times it's not, as Simon himself pointed out below.

My brother is an "influencer" in the legit sense that he makes all his money from having a following (mostly through brand partnerships). He only gets help for very specific tasks on a project-by-project basis and even then he doesn't do that very often. He loves working alone and the freedom that comes from that.

https://unnecessaryinventions.com/about-ui/