If you open your network settings in the System Preferences after upgrading to OS X 10.9 "Mavericks", you'll be informed that a new "Thunderbolt Bridge" network interface was added to the system. So it's now possible to network two Macs over Thunderbolt. Let's take our new network for a spin. Obviously you need a Thunderbolt cable to connect two Thunderbolt-equipped Macs. I got the 0.5 meter one f