"Fuel Stop"

The Kardashev scale was developed to rank a civilization's technological advancement, and at some point in the not-so-distant future it suggests that humans could develop the technology to harvest energy from the Sun itself! That really got me thinking...what if we could "fill-er-up" at the nearest star, like this image that came to me, or maybe we will harvest hydrogen by slowly draining the life out of Jupiter with an orbiting reactor...