Natural Fusion (5k Note: This chapter contains a lot of theory and excessive setup.)

Li Dong frowned as he looked at the [Play?] prompt on the video channel.

"So the emergence of the tech tree doesn't rely solely on Origin Crystals?"

As long as the real world reached the threshold for a certain technology, it would appear automatically.

With that thought, Li Dong looked again at the lv2 video title.

[Miniature Fusion Reactor and Fusion Engine.]

What was this? Was he supposed to turn into Tony Stark?

He smiled and shook his head, then tapped play.

The black video screen began to light up from its center.

At first, only a tiny area in the middle was illuminated, while everything around it remained pitch-black.

A cluster of small spheres appeared within that lit area.

Li Dong examined them carefully before realizing they were dozens of atoms trembling faintly as they crowded together.

A layer of gray matter spread between the nuclei, wrapping them within it.

Then, two of the closest atomic nuclei suddenly collided.

A little more light appeared, like a spark on dry grass. The spark grew larger and larger, and one atomic nucleus after another began to shine. Fusion had begun.

That initial glimmer had become a ball of light, though its outer edge was still black.

Not a trace of light energy escaped from the sphere.

At that moment, the camera slowly pulled back, and a set of data appeared beside the image.

[Temperature: 4.110? Kelvin.] [Density: 1.210? g/cm³.] [Irradiation loss: approximately 0.] [Reaction rate: constant]

Li Dong had spent an entire month in the main control hall of the Yangsui Fusion-Fission Hybrid Demonstration Power Station.

He naturally knew that Sunfire's temperature reached hundreds of millions of degrees.

Yet the fusion here was only a little over four million Kelvin, not even as hot as the Sun's core.

And