I do not think anyone is born with a pre-assigned passion. I just still doubt you can be "passionate" about a "space". That the word "space" is used in this entrepeneurial jargon is not a coincidence. The word "space" is a lack of things, not a thing itself, a vacuum, an absence, an opportunity. An opportunity to make money, specifically. I don't think the firm belief that there's a lot of money to be made in a certain "space" is actually a "passion". Not that there's anything wrong with that, not everything needs to be a "passion". Except in the silicon valley entrepeneurial mythos, where nothing is just a business, everything is a "passion" and will change the world (presumably for the better).