基本上，太阳每天为地球提供几乎无限的能源，但问题一直是我们该如何利用这能源。
The sun basically provides Earth with virtually unlimited source of energy everyday, but the problem has always been how do we tap this source of energy.
为了把一个物体加速到光速，你需要的简直是无限的能源。
To accelerate an object to the speed of light, you'd need nothing short of an infinite amount of energy.
就像以前的西部原野那样，太阳系实际上地有无限的能源和矿物资源。
Just like in the old Wild West days, the solar system has practically limitless energy and mineral resources.
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