It's not like that, in my experience at least. I can do amazing things in 6 weeks, but it involves eating, breathing, and sleeping the system/problem/project.

It's not like that, in my experience at least. I can do amazing things in 6 weeks, but it involves eating, breathing, and sleeping the system/problem/project. It turns out there are 1000 hours in 6 weeks (including sleep time), and if you have the problem loaded into your brain as its 'default mode network', then it takes over and you can get massive cross-functional efficiencies (including dreaming up solutions in your sleep). Working the equivalent for 2 hours/day would take years and does not generate anywhere close to the kind of energy or output that the parent is referring to.