imagine yourself on a beach. You’ve entered into a contest to build as many sand castles as possible in a few hours. Now imagine that every half hour a wave (a Saboteur) comes in and destroys half of what you have built. If you want to improve your performance, you could invest your time in attending a workshop that teaches you how to build sand castles even faster, increasing your castle-building potential incrementally. This would of course result in better performance. Alternatively, you could spend some of your time on building a sand wall to prevent the waves from sabotaging your castles
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