India, Dec. 30 -- In the not-so-distant time, when the SpaceX rockets and satellites dominate outer space, and the firm goes public, it may be valued at $1.5 trillion, shooting up the net worth of its founder, Elon Musk, to $1 trillion, or more. Although we can peep light years behind to gaze, explore, and understand the faraway stars, galaxies, and black holes, such numbers can still boggle the minds. Musk is now worth

nearly $750 billion, as per Forbes real-time list of billionaires, and it is not unusual for his wealth to change by $100 billion a day.

Billionaires' wealth is indeed going through the sky. Like the universe it seems unending, although experts tell us that there may indeed be an end somewhere out there. According to For...