Known of v high level example that is just incredibly disciplined about how they spend their time (e.g. "I did this, but was slowed significantly by poor code over that. Estimate about 30% time loss. I'm going to spend N weeks more in this area, so it's worth me spending 3.5 days fixing that code, but no more. I think I can fix it in about 2 days, so I will fix it. If I can't see the end of the fix by the time I'm 4 hours in, then I'm probably wrong about the expected time, so will abandon the fix").
The result is ridiculous productivity. They don't work long hours (strictly 9-5), but just very, very focused on making certain that there will be meaningful results from those hours.
So they exist, but absolutely it's not going to be common!
Known of v high level example that is just incredibly disciplined about how they spend their time (e.g. "I did this, but was slowed significantly by poor code over that. Estimate about 30% time loss. I'm going to spend N weeks more in this area, so it's worth me spending 3.5 days fixing that code, but no more. I think I can fix it in about 2 days, so I will fix it. If I can't see the end of the fix by the time I'm 4 hours in, then I'm probably wrong about the expected time, so will abandon the fix").
The result is ridiculous productivity. They don't work long hours (strictly 9-5), but just very, very focused on making certain that there will be meaningful results from those hours.
So they exist, but absolutely it's not going to be common!