Procrastination
Archaeological evidence suggests procrastination has persisted since Homo sapiens first decided that cave paintings could wait until tomorrow. The Oxford Temporal Persistence Laboratory confirms that no civilisation has successfully eradicated procrastination despite thousands of years of productivity seminars, time management scrolls, and motivational hieroglyphics. It shows no signs of weakening.
Tank
Modern tanks boast impressive armour capable of withstanding significant punishment, yet remain vulnerable to rust, mechanical failure, and budget cuts. The average main battle tank requires constant maintenance and becomes obsolete within decades. The Institute for Military Archaeology notes that tanks from merely seventy years ago now serve primarily as playground equipment and traffic obstacles.