Fact-Checking this Viral Bottle Trick

LOL, anytime a vacuum collapses in on itself due to the external pressure of a pressurised atmosphere, the energy involved is immense, it is what the pistol shrimp uses to stun or kill its prey. You don't need a theory or research to understand what is happening, when you use a vacuum to separate the elements, it takes energy, the elements want to naturally go back to their natural state of rest, the energy put in will result in equal energy coming out. These are the very basics of the laws of thermodynamics. The flash you see in the heart of the implosion (bioluminescence) is the by-product of heat from the energy used to separate the elements rapidly reversing. The flash is hotter than the surface of the sun but happens very briefly. Basically water is the exhaust of the combustion from hydrogen and oxygen, separate the elements by using energy under a pressurised atmosphere, you end up with a collapse that allows for the ignition of the hydrogen and oxygen, the result is the fuel being hydrogen and oxygen are now ignited and turning back into water, or the exhaust of the spent fuel combusting due to the speed of the collapse. Example: if you slowly stretch a rubber band with one end on your leg while the hand hold the other end, when released it will snap back at a specific speed, no matter how slow you pull it back, it wants to go back to its natural state of rest as fast as it can, depending only on how far back and how much energy is used to stretch it being the only factor in energy released from the amount of energy put in to pulling it back no matter how slow or fast you actually pull it back.