Comment by fc417fc802
6 days ago
It's not just time spent typing. Figuring out what needs to be typed can be both draining and time consuming. It's often (but not always) much easier to review someone else's solution to the problem than it is to solve it from scratch on your own.
Oddly enough security critical flows are likely to be one of the few exceptions because catching subtle reasoning errors that won't trip any unit tests when reviewing code that you didn't write is extremely difficult.
The problem is, building something IS the destination. At least the first 5-10 times. Building and fixing along the way is what builds lasting knowledge for most people.