BFFs
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Twinkl is a friendship bracelet for the 21st century
Telling people that you're thinking about them is so much of a chore for energy-deficient millennials that something had to be done. That's the idea behind Twinkl's charm bracelet, a wearable that lets you send positive thoughts to your chums at the push of a single button. Each device comes with five slots that you can buy charms for, each one identifying a family member, close friend or your favorite content creator. When you want to let 'em know they're in your mind, simply hit their corresponding button and their wrist will buzz.
Phone call study concludes we can only have five best friends
The Sisterhood of Traveling Pants can only have one more BFF, according to a study by a group of British researchers. They include anthropologist Robin Dunbar, who pinpointed a correlation between a primates' brain sizes and the sizes of their social circles. Humans, for instance, can only form meaningful relationships with up to 150 people. He believes that five of those make up one's closest friends, followed by 10 more in the next layer, 35 in the third and 100 in the outermost one. There are some differences between introverts and extroverts, but they have the same number of what's called the "Dunbar layers."
