The amount of data we create each day is astronomical. The digital universe likely will reach 44 zettabytes in 2020, according to the World Economic Forum. That is 40 times more bytes than there are stars existing in the observable universe. To say that's a lot of data is a colossal understatement — but is this truly surprising? After all, we can take phone calls from watches; stream music from refrigerators; open hotel, office and garage doors from phones; order dinner from Alexa; and check the weather from cars.