Neuroscientists have theorized for decades that the human brain time stamps events as they happen, just as a camera tags the date and time onto a digital photo file.

At Harvard, the Museum of Comparative Zoology library is more frequently used and its collections are extensive so the digital age has awhile to go before it's out of date there.

You would like your digital phone to download the event's address and compute the best train route to arrive at that date and time.