When Garry Small, professor at the Semel Institute for Neuroscience and Human Behavior at the University of California, Los Angeles says: "Our brains have become impatient with the boot-up process. We have been spoiled by the hand-held devices." I can't but think of computer systems from the 1980s where the whole O/S was built in ROMs or EPROMs and the desktop (or the shell or whatever) came up in a few seconds, or even a fraction of a second. Long ago, this. (Source)