Exactly. I can be a 10x programmer, or I can be a 0.1x programmer. It all depends on my (external) work environment and (internal) motivation. I'll bet a lot of developers can say that, perhaps even the majority.
It's unenlightened to say that the 10x programmer is a myth without, as the author suggests, asking "why" a few mre times.
So your productivity vary by a factor 100? I don't believe that, unless you are talking about short periods. That would mean that you would do more work in 3 days in one situation than you did in a year in another. So either you greatly overestimate what you did in those 3 days, or you greatly under estimate what you did in that year, or you were in an accident and is now brain damaged.
I think it's possible. Mainly because it's possible for an organisation to slow to a crawl, with internal bickering. So it's hard to be much more productive than an ordinary functional org, but it's also possible to be doing basically nothing, thus any X is possible.
Maybe trivial but it does seem to be how it works.
Being 0.1x would imply that the average person on the team produces 10x more value than you do, so it can't be a byzantine organisation since it would hurt your colleagues as well.
It's happened to me a couple of times, but the time periods were short because I realized within a couple of months that not only was I (and everyone else on the team) horribly unproductive but that effecting change was impossible.
It's unenlightened to say that the 10x programmer is a myth without, as the author suggests, asking "why" a few mre times.