difference between again and 'again and agian'

[ramanji]

Do not commit the error again
Do not commit the error again and again.

How are the above two sentences differ in meaning?
Does using 'again and again' add emphasis only besides repetition of the action?

 

[Anglika]

Yes, it does add emphasis > Don't do this repeatedly. Get it right.

 

[BobK]

:up: Yes, it adds emphasis, but it also implies 'you have already done this more than once'; so it can suggest a degree of frustration: 'OK, I know you're relatively new to the job, but you keep making the same mistake again and again.' The first time someone makes a mistake, you could say 'OK, everyone's allowed to foul up once, but don't make the same mistake again'.

b