Because: 1) people post positive news, but not negative ones; 2) you follow many people. Imagine you have 365 friends. Let’s say each friend has about 5 amazin

Because: 1) people post positive news, but not negative ones; 2) you follow many people. Imagine you have 365 friends. Let’s say each friend has about 5 amazing days per year, but the rest 360 days are pretty dismal. If we assume that each friend will only post about amazing days, that means that your social media feed, on average, every single day of the year, will look like a non-stop barrage of 5 posts describing 1 amazing thing that happened to a friend.