Heat simulation: on
Newton gravity: on
Ambient heat simulation: on
Water equalisation: off
Air simulation mode: No update
Ambient air temperature: 9999.00 K
Gravity simulation mode: off
Edge mode: void

With the above settings, first place URAN in the shape of a sphere.
Next, the URAN sphere is thinly wrapped in HEAC.
Then, place the CONV, a little away from the surface of the HEAC.
The CONV should be placed at equal intervals around the HEAC like the numbers on a clock.
(Make sure the CONVs do not touch the HEAC.)

In this state, increase the pressure of the entire space to 256 with AIR.
Then stop time and cover the CONV with HYGN.
If you allow time to flow, URAN will generate heat.
The heat and high pressure will cause a nuclear fusion reaction in HYGN.
At this time, HYGN will release PHOT and turn into NBLE.
When these PHOT and NBLE come into contact with the CONV, they will become HYGN.
In this way, you can create a sustainable artificial sun.

If the artificial sun is left alone, the pressure in the vicinity of one pixel around CONV will steadily rise.
(In my observations, the pressure finally stopped rising at a value of 536,870,912.)
By the way, most of the NBLE accumulate near CONV,
but a small amount of NBLEs are forcefully ejected from the artificial sun.
Before reaching the edge of the screen, these ejected NBLE
have a certain probability of turning into PLSM, NEUT, and PHOT, and CO2 is generated.
However, these PHOT and NEUT were attracted to the artificial sun without heading toward the edge of the screen.
I thought this phenomenon was strange, so I displayed the gravity field
and found that the artificial sun was the source of gravity.
Immediately, I removed the HEAC and URAN spheres, and all the NBLEs around CONV disappeared.
Then, BHOL appeared in the high-pressure area around CONV.
Why did CONV generate BHOL?
(In the real astrophysics, it is true that enormous pressure is certainly required
in the process of generating black holes...)