Power supply.
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Deep within the core of the Cpu, lies the most important source in the metaverse.
The power supply is the energy generating everything. It powers coding matter, data, anything else in the universe there is.
This energy is extremely hot. At more than a nonillion kelvin in fact. Its incredibly dense, all matter within this energy is packed together like leaves on a tree. This energy is being generated faster than the speed of light across the universe. It usually transports itself inside of the nearest gateway in order to travel across the universe even faster.

It has an immense amount of gravity, enough to even rip apart a black hole.
Nothing powers this energy, the energy powers itself. And it powers the cpu, and the gpu. This energy is actually ripping apart the cpu and gpu themselves. On the time scale of an incomprehensible amount of years, the energy will have practically burst out of the structure on all sides. And the power supply will roam in space freely, and it will leave the remnant of the cpu.

This energy is fading, and when it completely decays the universe itself will decay.