Take an example of a boy named ‘A’. He has injured himself on his knee while riding his bicycle and is advised rest for a period of time. His mother tells him to go for his sports class on Wednesday as he has missed them but he refuses and says that he will go on Friday. He goes on Friday wearing a pair of shorts that is a little loose for him. He does his warm-up and is running around the court. Suddenly his shorts get caught in a hook and he falls on the knee again.
Now contemplate, if A had gone on Wednesday, when his injury was fresh, he would have been hurt even more badly. If had not gone on Friday and had instead went the following Monday, his injury would have healed completely, and he wouldn’t even have got hurt. If hadn’t worn those shorts before going to the class, then also the scenario would have been completely different.
Such are the various complexities involved in just one scenario. If you apply this to devastating natural or manmade disasters, the results can be astounding. Take for example the Uttarakhand flash floods, or 9/11 terrorist attack.