Here's the science behind it: In the early '90s, British anthropologist Robin Dunbar noticed a correlation between a primate's brain size and how big their social groups were—the bigger the brain, the more friends one could have.
Dunbar determined that people are only capable of having a finite number of friends due to the size of our neocortex, which is a subsection of our cerebral cortex. Specifically, we're only able to have five best friends, another 10 close friends, 35 acquaintances, and 100 additional contacts.
Dunbar recently tested out his theory some more by examining 6 billion phone calls made by 35 million people in an anonymous European country. His team of researchers chose to examine phone calls from the year 2007 because it largely predates the popularity of smartphones and social media, which would skew the results. (Seriously, who do you even talk to on the phone these days? Your grandma? That's about it.)
"The team assumes that the frequency of calls between two individuals is a measure of the strength of their relationship," says the MIT Technology Review. The study found that Dunbar's estimate was not too far off: "The average cumulative layer turns out to hold 4.1, 11.0, 29.8, and 128.9 users," researchers found—again, that's besties, close friends, acquaintances and "contacts" respectively.
So even though Tay's squad might seem to run hella deep, girlfriend only has between 4.1 and 5 BFFs. And TBH, that seems like more than enough.
This article originally appeared on Cosmopolitan.com. Minor edits have been made by the Cosmo.ph editors.