Quantum Computing is an exciting area of R&D which may have a massive impact on society, especially in areas concerning big data due to its power to crunch down computing time. However, its potential is only just being explored, and below is an interesting (and accessible) article reporting how some aspects of fundamental laws of physics could be challenged by programs written for quantum computers.  

This could have a huge impact in many areas where data, once processed, is assumed to have a fixed, irreversible state.   

"Undo" will never be the same again ...  

The original article in Nature can be found here.