Maximum theoretical $\text{D-T}$ energy output in proposed First Light Fusion (FLF) fuel pellet I recently stumbled into Youtube videos diving into the science behind First Light Fusion's (FLF) goal of creating an inertial confinement fusion (ICF) fuel pellet by leveraging the phenomenon of cavitation, as exhibited in nature by the pistol shrimp.  I began dusting off my partial differential equations and ramping up on Naiver-Stokes to model the cavitation, when I stumbled into an older FLF video which caused me to pause.
In the older video, the fuel pellet was stated as being equivalent in energy to a barrel of oil.  In newer videos, the fuel pellet is stated as being able to power a UK home for 2 years.  A barrel of oil is ~1700 kWh, and the average household consumption of energy in UK is on order of 8.5 - 10 kWh per day, which extrapolating biannually is 6200 - 7300 kWh, which is notably more energy than a single barrel of oil.
FLF's goal is very sensible in that their focus is the design and eventual manufacture of the ICF fuel pellets and corresponding projectile, with the idea that other companies will create and manage a power plant to consume the fuel pellets, using known proven technology.  FLF proposes the use of liquid thorium in conjunction with steam power generation, all of which will obviously affect the energy gain Q factor.  Not to mention the energy required to accelerate the projectile to strike the fuel pellet, or the energy to extract deuterium and tritium, etc, etc...
Without consideration for the aforementioned Q factor gains and losses, but instead focusing purely on the fusion aspect, given the size of the fuel pellet, stated in the aforementioned links as being a 15mm cube with a 1mm cavity containing a deuterium-tritium (D-T) mix, what is the maximal amount of energy possible from the fuel pellet under the following assumptions...

*

*the 1mm cavity is spherical

*the D-T mix is at 1 atmosphere of pressure

*the D-T fusion is 100% efficient

That all being said, what is the spectrum of truth regarding the potential energy output?
 A: I am going to say this right up front: I am a complete sceptic about FLF's concept.
I would love you to continue your collapse calculations, because frankly I think the possibility of getting the required density (100 times that of lead) is simply impossible using their concept.
And if there is anything that ever cried out "Rayleigh Taylor" it's the idea of collapsing a spherical void with a freaking plastic cube, and do so by pushing on ONE SIDE of it. How the f is that supposed to work?! Even their own simulations on YT show pretty much completely chaotic collapses.
As you have noted, the company has continued to change the concept both in what they claim it does and how they claim it will work and what they claim it will be made out of. And throughout, the entire argument for why it will work is "Pistol shrimp, cool, amiright?!"
So...
The calculation of the potential output is found in Nuckoll's original paper. The primary issue for ICF is that the fuel is disassembled at a speed that is somewhat faster than the fusion rate. So ICF systems tend to blow apart before much of the fuel has undergone fusion - this is why NIF only got Q~0.7 in spite of ignition, the propagating burn was snuffed out when the rest of the fuel flew off.
