To what?
Life (and tmp2) are capped to 0-65535 when saving because it's saved using an unsigned short and "It's Good Enough So We Wont Change It"* despite the fact that tmp is saved with a signed long which is why it can be saved with a negative value
(*never actually been said i just thought this was funny)
Well the vibranium has negative 727379968 LIFE
Basically, the reactor works like this:
I place the vibranium with the negative LIFE next to a clone which creates normal vibranium.
The vibranium with negative LIFE then jump-starts the decay of the normal vibranium,
And evidently, the vibranium with negative LIFE doesn't decay. This process then creates
heat reaching 9000 C. Then the heat is then transferred to water which makes steam