Guys, let's cut all the discussion about entropy, turbulence, wind sheer, mass/weight/inertia, etc.
It's all irrelevant. In the midst of that discussion it looks like most posters didn't notice that user tobigtofool actually found a real-world example a bunch of balloons moving essentially identically to the jellyfish:
This confirms what many posters here have been saying — in at least certain atmospheric conditions, a bundle of balloons moving with the wind will experience little to no turbulence, looking EXACTLY like the the jellyfish UAP.
It's settled. We don't need to educate everyone on complex fluid dynamics to prove the point, just *point to the video*. This also addresses any arguments about the apparently "rigid structure" of the object.
All that's left is the odd shape of the object. I think it can probably be explained by a combination of some small number of balloons, some probably only remaining partially inflated, and possibly contained in netting or a plastic bag. The hanging bits are likely a part of the bag/netting, and/or some deflated/exploded balloons. But the possible number of configurations of those components is so huge we'll likely never be able to *perfectly* recreate it to the satisfaction of the truest of true believers, especially considering that it's filmed in IR and we're probably dealing with objects with varying degrees of transparency.
Personally I'm very close to saying "stick a fork in it".