I’ll confess that I was rather stunned to discover the existence of both of these items:

Personal submarines.

You always think of submarines as belonging to the navy or to oceanic research outfits. I never would have thought that individuals would own one, designed as their own personal pleasure vehicle. But, in hindsight, why not? Of course, you have to be one of those incredibly lucky individuals who can actually afford the expense that, to mere mortals, is completely inconceivable. If you have that kind of money, you’d probably want to escape to the depths of the ocean in one of these anyway – just to avoid all of the people who want to shoot you on principle for being so much better off…

3-D printers.

No, I’m not making this up. Some bright bulbs (more people gifted with envious abililities beyond us mere mortals – maybe they should hook up with the owners of one of those submarines and go on vacation together) have come up with a way of “printing” 3-dimensional objects. Now if they could only attach some basic miniaturized kitchen appliances to the thing, so that it could mix and match ingredients and produce food to any given recipe, we’d have a fully realized version of Star Trek’s replicators. Somebody beam me up.