This story made me imagine the future where huge shopping malls are all using bitcoins to spend it on anything they like. South Korea is a model to other countries so I'm sure that they will follow this new trend.
At the moment it is impossible. I am sure that this fact can be someone else's fiction. How do you imagine the buying process which can take from several hours to several days? In order to be able to use bitcoin directly in the trade confirmation of the transaction must be a few seconds. I'm sure that before will have an opportunity to resolve the issue with the block size.
