 Last week, the billionaire businessman Richard Branson hurled himself to the edge of space on a ship he helped privately fund and develop, and came back smiling. Now Jeff Bezos is doing the same. Billionaires launching themselves skyward on their own dime has occasioned a bitter debate about income inequality, whether the government should be taking more of their wealth through taxation. Here on Earth, in the richest country on the planet, half our people live paycheck to paycheck, complained Bernie Sanders. But hey, the richest guys in the world are often out of space. Yes. It's time to tax the billionaires. The anger directed at Bezos Branson and SpaceX's Elon Musk stands in striking contrast to the high approval long enjoyed by NASA, even though the space agency spent the better part of the last decade unable to get humans off-planet at all, while still soaking up billions in taxpayer dollars. Should billionaires play out their space travel fantasies, tweeted Congressman Ro Kehana, a member of the NASA caucus, or should we invest in schooling, provide health care, and create prosperity for everyone? The irony is that NASA takes our money without our consent to finance a space program that no ordinary citizen can ever hope to access. But when Branson, Musk, and Bezos spend their wealth with the explicit goal of selling ever-cheaper tickets to all comers, that's when congressmen get grumpy. There's every reason to believe the democratization of space travel is upon us. Bezos, Branson, and Musk have already delivered on that promise in other sectors, unless the government manages to screw things up. Following the pattern of commercial air travel in the 20th century, a novelty for billionaires today may well be accessible to the ordinary rich and then the middle class soon enough. The billionaires also say they're taking a long term view. One day the capacity to get off-planet cheaply and at scale could be humanity's salvation. But what they want or envision isn't what really matters. Just as bubble wrap was invented to be wallpaper, enlisting was for cleaning floors, consumers will decide where the private space industry ultimately leads. Bezos, Branson, Musk, and others have overtaken a wildly expensive, ineffective government program and built a competitive industry, driving down the cost of getting a kilogram into low-Earth orbit by 44-fold already. Which billionaire goes to space first, how high he flies or how big his rocket is, or how much he pays in income taxes? None of that matters. What matters is what the rest of us are going to do with access to those same spacecraft and bigger, better, weirder ones in the years to come. Oh, space!