One of the biggest skills humanity has to learn soon is global heat management. At the same time it's 100 degrees in Dallas, it's freezing cold in some other part of the world. And in the same place but at a different time of year, the temperature goes down to around 40 degrees. There's got to be a way to even out those fluctuations, and doing so would produce immense benefits: humans are comfortable in 60-70 degree weather, so by moving heat from the hot space/time locations to the frigid ones, we win on both sides of the deal. And by the way, the Second Law of Thermodynamics also wants to smooth out temperature gradients. It's got to be possible.