Can we undo expectations?

“Undo" exist only in the virtual world (well not only). 

 But what a big difference... We write, think, knowing we can correct. This is new. 

 I just wrote a long email, and by mistake I pressed cancel instead of sending or saving, and it was deleted. I felt betrayed, fundamentally betrayed by the world, when in fact I should known better: throwing things at a fire always burn them in the real world and this is no betray: it is the way it works. 

 The digital world has created new expectations in an old reality - not a new reality. We feel cheated and find abnormal things that are just natural facts. 

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