Imagine you walk into a hospital and in ward no.1, you see a patient buckling and unbuckling his helmet strap. A nurse besides him records the number of times the patient has completed this repetitive action. In ward no.2, another patient is looking left and right. Another nurse is counting the times the patient is doing this.
You may guess this is a mental hospital. Actually, it's not. It's a futuristic hospital because scientists have found out how to reverse time.
Ward no.1
The patient does not buckle the helmet strap each time he rides a motorcycle. On his 1289th time of riding, his motorcycle skidded and he sustained head injuries as his unbuckled helmet came off during the accident.
His doctor (a time-travel scientist) managed to determine the accident took place at the 1289th time he rode a bike. He prescribed his medication to the nurse when the patient was still unconscious. The doc instructed the nurse,"ask patient to repeat the buckling and unbuckling for 1289th time and he should recover!"
If time is reversible, that's how patients are cured. Unfortunately, we have not found how to time travel yet. But don't be despair. The above method to cure is still the same but with one very minor condition i.e. You have to do it BEFORE the accident happens. For patient in ward no.1, he would have 'cured' his head injury if he had buckled his helmet each time he rides his bike. Simple isn't?
How many times have we seen others (may be ourselves) ignore safety just because we are lazy to do so? As parents, we keep complaining how lazy our kids are. Could they have been inspired by their parents who make illegal u-turns every day when sending the kids to school?
Can you guess what has happened to the guy in ward no.2? A small clue...did your primary school teacher asked you to look right, look left and look right again before doing something?
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