Suppose you needed to transfer 1TB of data (perhaps your home movie collection) from San Francisco to London. What would be the fastest route? Put the disk on British Airways flight 286 at SFO, or transfer it across the Internet using a 100 Mbps connection?
Surprisingly, the answer is the former not the latter. If you had a perfect 100 Mbps Internet connection and could fill it completely with data the transfer would take 22 hours 13 minutes. British Airways make the flight in under 10 hours.