Comment by AnimalMuppet

But the flow state wasn't just about typing code. The flow state was about understanding the problem, about loading it into your head so that you could "walk around in it" mentally, so that you could figure out that what really needed to happen was that module X needed to add a getter to value foo, that module Y needed to get foo and make a change based on the value, and that the key to making this all work was to add a way for Y to access X that fit within the existing architecture. That took focus, far more than implementing the pieces did.