Remember floppy disks? This supplier says business is booming

Persky sells about 500 disks a day, but says he knows his days are 
numbered. 

 

* My days are numbered : 시한부 인생

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flip : 뒤집어지다

flop : 쿵 떨어지다, 흐느적거디라

flip-flop 조리, 우유부단