Most of the time, tried-and-true is the enemy of innovation. The only real way to move forward is to hold everything you know in suspicion. Only once you try a new way, and test it to know if it is better or worse, should you then decide to do it your way. This creates a filter which favors understanding-by-doing rather than understanding-by-inspection.
Five Things Old Programmers Should Remember
Gary Wisniewski
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This morning I tried to eat my cereal with a fork. Then decided “yeah, the spoon is still better.”