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I said it is about distribute the knowledge to other. You send a card/deck to other by just send them a message. They can save the shared card/deck and learn later [1] [1]: https://youtu.be/0w6PhlG37dk?list=PLHAwmsMPPV79N6uqpX5o_Yjc4...

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The advantages here is about access the knowledge in a chat client and share it immediately (quickly and simply) The receiver can view and save it immediately in the chat client also.

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