This is a perfect example of how to attain 'flow'. He's done the same (or very similar) thing before, so there is no distress or despair. The 48 hour window p

This is a perfect example of how to attain 'flow'. He's done the same (or very similar) thing before, so there is no distress or despair. The 48 hour window provides the necessary, low-key stress stimulus necessary. MCN (an unusual motorcycle magazine) had a series on this. To attain flow, you need some stress, but too much stress will stop flow. This is probably why we find many parts of coding to be fun, but debugging and navigating poorly documented APIs to be painful.