"<a href=""http://www.youtube.com/watch?v=zJt8yzR2aoY&amp;t=2m58s"">2:58</a><br>Wait a second... Aren't you basically describing Wormholes? And if so", would it also work if instead of portals we just had a Wormhole with an entrance very close to the exit? Because if yes, then either Wormholes can't exist OR we have to override all of Newtonian Thermodynamics!