I can not give you the direct answer but I can give you some ideas. The videos that go viral have an effect that makes peoples ideas clear and shows what people are into and then more people can get to know about these things.
If someone tells you to stop shouting, it's another way of saying, "TURN OFF YOUR CAPS LOCK." When someone is TYPING AN ENTIRE SENTENCE IN ALL CAPITAL LETTERS, that person is SHOUTING. It is not proper netiquette to TYPE IN ALL CAPS, especially in e-mail
Answer:
Say you have a key in a dictionary, or a key in a 2-d list. When you insert(), you are destructively iterating the original list and modifying it to reflect the insert() component. In order for the key to get lost you would have to do say insert(len: :1) which would remove the second key and therefore cause it to get "lost" because it will be destructivsly removed from its assignment and replaced by whatever you choose to insert.
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