I get that you're being at least a little facetious (and probably don't read comments here), but it'd bother me if I didn't try to address some basic issues:
1) You don't--and, I'd imagine, no one ever will--have a (true, Rocketeer-worthy) jet pack because it's a fundamentally flawed idea. You'd have to find/invent a means of propulsion that doesn't produce flames/heat (unless you have no interest in retaining your legs) and requires very little (or very lightweight) fuel, offers full control over acceleration (and won't accelerate fast enough to cause the pilot to lose consciousness), and has a safe and simple means of stopping/landing. I know nothing of engineering, but that all sounds like a nightmare, at best.
2) You do realize that cultured meat couldn't--without a ton of work, if EVER--yield a product anything similar to a steak, right? Sure, it could make dandy ground meat products, but nothing luxurious. Nor does meat (cultured or classical) really make sense when it comes to feeding the masses--meat's _profoundly_ wasteful (requiring a ton of potable water, huge amounts of land for the animals themselves, and huge amounts of land, water, fertilizer, etc. to produce _food_ to feed our future meat-food) and yields very little in return (delicious though it might be). My point is just that starving folks (and all of us, really) will be better served (as they'll have MUCH more, and more worthwhile, food) and have a better future ahead of us (as we could all be well-fed and generally healthier) if we embrace more foods than just meat; it takes time and effort (and bravery) to learn about and try new foods or even just to move away from the standard American diet (in which meat is the star of the meal and often the only one standing on the stage). Heck, if you've got some rolled oats, an oven, and 10-ish minutes, I can tell you how to make something that'll taste better and meatier than anything a fast food place claims is "meat."
4) I'm sure that hamsters the size of bears are not possible (at least not in the way that you or I would ever want them to be), but I will admit that those would be AMAZING.