Second, repetition is hard to define in cyberspace. For example, even the single act of uploading an embarrassing video might be considered cyberbullying if it is causing repeated humanilition.Third, power imbalance might be implied in the use of technology or take different shapes in cyberspace; it might be indicated by higher technological ability, by a higher rank in the virtual community, or by anonymity. It has also been argued that power imbalance might not be as important in cyberbullying as in conventional bullying. Cyber-victims presumably have more (technical) options of preventing and suppressing cyberbullying or of retailiating than victims have in conventional bullying ; therefore they might feel less helpless