> Most programming should be done long before a single line of code is written
Nah.
I (16+ years developer) prefer to iteratively go between coding and designing. It happens way too often that when you're coding, you stumble across something that makes you go "oh f me, that would NEVER work", which forces you to approach a problem entirely differently.
Quite often you also have eureka moments with better solutions that just would not have happened unless you had code in front of you, which again makes you approach the problem entirely differently.
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