Does the idea of colonizing Mars, and perhaps other planets, make any sense? In my humble opinion, not at all. This, of course, doesn’t apply to business ventures. If there are people willing to take a ride into space, or spend a vacation on some near or distant celestial body, who, in addition to the mere desire, have the necessary financial resources and the willingness to use them for this purpose, the providers will appear as well and overcome any associated difficulties, no matter how complex they may be. All thanks to the all-pervasive principle of supply and demand. The same is true of other services, such as hair styling, hooking, or bungee jumping, although these don’t require as complex logistics and advanced technology. (…)