During periods when the internet is not slowed by congestion, the number of internet searches is probably close to the socially efficient number. how can we tell this this is true?

We can this is true because the number of internet searches that are being done at that time is just enough to meet the actual capacity of the internet facility.

Explanation: Socially efficient number is that number that is just enough to meet the actual capacity of a given system such as an internet connectivity or internet facility.

When the number of internet searches are just enough not to cause congestion in the search engines or internet facility,it can be said that the socially efficient number has been achieved.

cyberstalking on the internet means to harass or stalk someone, a group, or an organization. this may include defamation, slander, and false accusations. in many jurisdictions, cyberstalking is a criminal offense. 

on the other hand, cyberbullying focuses more on intimidating, threatening or harassing someone. harmful bullying include posting threats, rumors, and sexual remarks.