It'S Been A Productive Day..

When you spend 6 hours crafting the most elegant algorithm with perfect variable names and documentation, only to discover NumPy has a one-liner that's 200x faster. import numpy as np and watch your self-esteem plummet faster than your execution time! The classic "reinventing the wheel vs. standing on the shoulders of giants" dilemma that haunts every developer who thinks they're being productive.