Once upon a time, cognitive scientists tell us, patience and impatience had an evolutionary purpose. They constituted a yin and yang balance, a finely tuned internal timer that tells when we’ve waited too long for something and should move on. When that timer went buzz, it was time to stop foraging at an unproductive patch or abandon a failing hunt.
We now insist that Web pages load in a quarter of a second, when we had no problem with two seconds in 2009 and four seconds in 2006.
— Read on m.nautil.us/issue/22/slow/why-your-brain-hates-slowpokes